Estados Unidos Mexicanos v. Smith & Wesson Brands Inc. ( 2024 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 22-1823
    ESTADOS UNIDOS MEXICANOS,
    Plaintiff, Appellant,
    v.
    SMITH & WESSON BRANDS, INC.; BARRETT FIREARMS MANUFACTURING,
    INC.; BERETTA U.S.A. CORP.; GLOCK, INC.; STURM, RUGER & COMPANY,
    INC.; WITMER PUBLIC SAFETY GROUP, INC., d/b/a Interstate Arms;
    CENTURY INTERNATIONAL ARMS, INC.; BARETTA HOLDINGS SPA; GLOCK
    GES.M.B.H.; COLT'S MANUFACTURING COMPANY, LLC,
    Defendants, Appellees.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. F. Dennis Saylor, IV, U.S. District Judge]
    Before
    Kayatta, Gelpí, and Montecalvo,
    Circuit Judges.
    Steve D. Shadowen and Jonathan E. Lowy, with whom Richard M.
    Brunell, Nicholas W. Shadowen, Shadowen PLLC, and Global Action on
    Gun Violence were on brief, for appellant.
    Sameer Advani, James C. Dugan, Gabrielle K. Antonello,
    Ferdinand G. Suba, Jr., Willkie Farr & Gallagher LLP, Zainab Ali,
    and Benita Yu on brief for Jorge Sánchez Cordero Dávila and Raúl
    Contreras Bustamante, amici curiae.
    Thomas M. Sobol and Hagens Berman Sobol Shapiro LLP on brief
    for Scholars of International Law, amici curiae.
    Lawson E. Fite, Michael B. Smith, and Marten Law LLP on brief
    for Gun Violence Prevention Groups, amici curiae.
    Roberta L. Horton, Lucy S. McMillan, and Arnold & Porter Kaye
    Scholer LLP on brief for Mexican Activists, Scholars, and Victims,
    amici curiae.
    Donna M. Evans, Julie G. Reiser, Molly J. Bowen, Zachary R.
    Glubiak, and Cohen Milstein Sellers & Toll PLLC on brief for Law
    Enforcement Officers, amici curiae.
    Andrea Joy Campbell, Attorney General of Massachusetts,
    Elizabeth N. Dewar, State Solicitor, Rob Bonta, Attorney General
    of California, William Tong, Attorney General of Connecticut,
    Kathleen Jennings, Attorney General of Delaware, Brian L. Schwalb,
    Attorney General for the District of Columbia, Anne E. Lopez,
    Attorney General of Hawai'i, Kwame Raoul, Attorney General of
    Illinois, Anthony G. Brown, Attorney General of Maryland, Dana
    Nessel, Attorney General of Michigan, Keith Ellison, Attorney
    General of Minnesota, Matthew J. Platkin, Attorney General of New
    Jersey, Raúl Torrez, Attorney General of New Mexico, Letitia James,
    Attorney General of New York, Ellen F. Rosenblum, Attorney General
    of Oregon, Michelle A. Henry, Attorney General of Pennsylvania,
    Peter F. Neronha, Attorney General of Rhode Island, and Charity R.
    Clark, Attorney General of Vermont, on brief for Massachusetts,
    California, Connecticut, Delaware, the District of Columbia,
    Hawai'i, Illinois, Maryland, Michigan, Minnesota, New Jersey, New
    Mexico, New York, Oregon, Pennsylvania, Rhode Island, and Vermont,
    amici curiae.
    Roberto J. Gonzalez, Jacob A. Braly, and Paul, Weiss, Rifkind,
    Wharton & Garrison LLP on brief for Latin American and Caribbean
    Nations and NGO, amici curiae.
    Ellen V. Leonida, Matthew Borden, Kory J. DeClark, and
    Braunhagey & Borden LLP on brief for District Attorneys, amici
    curiae.
    Edward V. Colbert III, Scott Harshbarger, and Casner &
    Edwards, LLP on brief for Professors of Transnational Litigation,
    amici curiae.
    Noel J. Francisco, with whom Anthony J. Dick, Harry S. Graver,
    Andrew E. Lelling, Jones Day, James M. Campbell, Campbell Conroy
    & O'Neil, P.C., James W. Porter, II, Porter & Hassinger, P.C.,
    Mark D. Sheridan, Squire Patton Boggs (US) LLP, Patricia A.
    Hartnett, Peter M. Durney, Smith Duggan Cornell & Gollub,
    Christopher Renzulli, Jeffrey Malsch, Renzulli Law Firm LLC,
    Jonathan I. Handler, Day Pitney LLP, James Vogts, Andrew A.
    Lothson, Swanson, Martin & Bell LLP, Nora R. Adukonis, S. Jan
    Hueber, Litchfield Cavo LLP, Joseph G. Yannetti, Morrison Mahoney
    LLP, Anthony M. Pisciotti, Danny C. Lallis, Ryan L. Erdreich,
    Pisciotti Lallis Erdreich, John G. O'Neill, Sugarman, Rogers,
    Barshak & Cohen, P.C., Michael L. Rice, Katie J. Colopy, and
    Harrison Law LLC were on brief, for appellees.
    Peter M. Torstensen, Jr., Assistant Solicitor General, Austin
    Knudsen, Montana Attorney General, Christian B. Corrigan,
    Solicitor General, Brent Mead, Deputy Solicitor General, Tanner
    Baird, Solicitor's Fellow, Steve Marshall, Attorney General of
    Alabama, Treg Taylor, Attorney General of Alaska, Tim Griffin,
    Attorney General of Arkansas, Ashley Moody, Attorney General of
    Florida, Christopher M. Carr, Attorney General of Georgia,
    Theodore E. Rokita, Attorney General of Indiana, Brenna Bird,
    Attorney General of Iowa, Daniel Cameron, Attorney General of
    Kentucky, Jeff Landry, Attorney General of Louisiana, Lynn Fitch,
    Attorney General of Mississippi, Andrew Bailey, Attorney General
    of Missouri, John M. Formella, Attorney General of New Hampshire,
    Alan Wilson, Attorney General of South Carolina, Marty J. Jackley,
    Attorney General of South Dakota, Ken Paxton, Attorney General of
    Texas, Sean D. Reyes, Attorney General of Utah, Jason Miyares,
    Attorney General of Virginia, Patrick Morrisey, Attorney General
    of West Virginia, and Bridget Hill, Attorney General of Wyoming,
    on brief for State of Montana and 19 Other States, amici curiae.
    H. Christopher Bartolomucci, Kenneth A. Klukowski, and
    Schaerr Jaffe LLP on brief for U.S. Senator Ted Cruz, U.S.
    Representative Mike Johnson, and 37 other members of Congress,
    amici curiae.
    Christopher A. Kenney, Kenney & Sams, P.C., and Paul B.
    Stephan on brief for National Shooting Sports Foundation, Inc.,
    amicus curiae.
    January 22, 2024
    KAYATTA, Circuit Judge.    The government of Mexico brings
    this lawsuit against seven U.S. gun manufacturers and one gun
    distributor.1    The district court dismissed Mexico's complaint
    because it concluded that Mexico's common law claims were barred
    by the Protection of Lawful Commerce in Arms Act (PLCAA).      That
    act prohibits the bringing of certain types of lawsuits against
    manufacturers and sellers of firearms in federal and state courts.
    We agree that the PLCAA's limitations on the types of lawsuits
    that may be maintained in the United States apply to lawsuits
    initiated by foreign governments for harm suffered outside the
    United States.    However, we also hold that Mexico's complaint
    plausibly alleges a type of claim that is statutorily exempt from
    the PLCAA's general prohibition. We therefore reverse the district
    court's holding that the PLCAA bars Mexico's common law claims,
    and we remand for further proceedings.    Our reasoning follows.
    I.
    "Because this appeal flows from the district court's
    order granting a motion to dismiss, we draw the relevant facts
    from the complaint, accepting all well-pleaded factual allegations
    1  Defendants are Smith & Wesson Brands, Inc.; Barrett
    Firearms Manufacturing, Inc.; Beretta U.S.A. Corp.; Century
    International Arms, Inc.; Colt's Manufacturing Company, LLC;
    Glock, Inc.; and Sturm, Ruger & Co., Inc. and Witmer Public Safety
    Group, Inc., doing business as Interstate Arms.       Mexico also
    initially named two foreign holding companies as defendants, but
    later voluntarily dismissed its claims against those companies.
    - 4 -
    as true."    Foisie v. Worcester Polytechnic Inst., 
    967 F.3d 27
    , 32
    (1st Cir. 2020).
    Mexico has strict gun laws that make it "virtually
    impossible" for criminals to obtain firearms legally sourced in
    the country.    It has one gun store in the entire nation and issues
    fewer than fifty gun permits a year. Despite these strong domestic
    regulations, Mexico has the third-most gun-related deaths in the
    world.     The number of gun-related homicides in Mexico grew from
    fewer than 2,500 in 2003 to approximately 23,000 in 2019.       The
    percentage of homicides committed with a gun similarly rose from
    fifteen percent in 1997 to sixty-nine percent in 2021.
    The increase in gun violence in Mexico correlates with
    the increase of gun production in the United States, beginning
    with the end of the United States' assault-weapon ban in 2004.2
    The complaint details a steady and growing stream of illegal gun
    trafficking from the United States into Mexico, motivated in large
    part by the demand of the Mexican drug cartels for military-style
    weapons.     For example, Mexico claims that between seventy and
    ninety percent of the guns recovered at crime scenes in Mexico
    were trafficked into the country from the United States.
    Mexico's government has borne a variety of harms as a
    result of this gun-violence epidemic, including but not limited
    2  Violent Crime Control and Law Enforcement Act of 1994, 
    Pub. L. No. 103-222, 108
     Stat. 1796, 1996-1998(expired 2004).
    - 5 -
    to: costs of additional medical, mental-health, and other services
    for victims and their families; costs of increased law enforcement,
    including specialized training for military and police; costs of
    the   increased   burden   on   Mexico's   judicial   system;   diminished
    property values; and decreased revenues from business investment
    and economic activity.
    In an attempt to redress these harms, Mexico brought
    this lawsuit in federal district court in Massachusetts, seeking
    both damages and injunctive relief.        Combined, defendants produce
    more than sixty-eight percent of the U.S. guns trafficked into
    Mexico, which comes out to between 342,000 and 597,000 guns each
    year.    Mexico alleges that defendants know that their guns are
    trafficked into Mexico and make deliberate design, marketing, and
    distribution choices to retain and grow that illegal market and
    the substantial profits that it produces.
    Mexico alleges       that one way    defendants deliberately
    facilitate gun trafficking into Mexico is by designing their guns
    as    military-style   weapons,     knowing    that   such   weapons   are
    particularly sought after by the drug cartels in Mexico.               For
    instance, defendants make assault rifles with high rates of fire,
    low recoil, and the capacity to hold large amounts of ammunition.
    The guns can be easily converted into fully automatic weapons.
    Some of defendants' guns are "weapons of war," such as the "armor-
    penetrating" Barrett .50 caliber sniper rifle, which can be (and
    - 6 -
    has been) used to take down aircrafts and armored vehicles.                      Such
    weapons are especially attractive to Mexican drug cartels, which
    frequently       engage    in     military-style      combat    against    Mexican
    military and police personnel.            Defendants also choose to forego
    safety features (such as allowing only recognized users to fire
    the   weapon)     that    might    decrease    the   guns'     attractiveness     to
    wrongdoers      without     diminishing   their      utility    for    law-abiding
    citizens.      Similarly, Mexico alleges that defendants intentionally
    design their guns to have easily removable serial numbers, making
    them much more attractive to criminals both in the United States
    and abroad.
    Mexico alleges that defendants not only design their
    guns as military-grade weapons; they also market them as such.
    Defendants' marketing materials depict their weapons in use by or
    in proximity to military and law enforcement personnel and contain
    other references to military and law enforcement.                    Advertisements
    include     statements      like    "authentic       Military    &    Police . . .
    design," "battle proven," and "transforms the military platform to
    fit civilian precision shooters."             Mexico alleges that defendants
    engage    in    these     marketing   techniques      knowing    that     they   are
    disproportionately likely to attract groups harboring militaristic
    ambitions, like the Mexican cartels.
    Mexico also alleges that defendants' distribution system
    facilitates illegal trafficking to Mexico.                Defendants generally
    - 7 -
    use   a   three-tier     distribution    system.      Manufacturers        (most
    defendants) sell to distributors; distributors (one defendant)
    sell to dealers; and dealers sell to consumers.               Guns flow from
    this distribution system into Mexico in multiple ways.                The most
    common method of trafficking is through "straw sales" -- sales
    made to a buyer purchasing on behalf of somebody else who is not
    lawfully permitted to buy a gun.           Often, straw sales occur in
    circumstances     that   clearly   indicate    to    the    dealer    that   the
    transaction is a straw sale and could be prevented if defendants
    required their dealers to be well-trained and follow the law.
    Other types of transactions that pose a particularly
    high risk of trafficking include sales of multiple guns to the
    same buyer over a limited period of time; sales by "kitchen-table"
    dealers who deal online or in locations that make it easy to avoid
    regulations; and sales by non-licensed sellers at gun shows without
    background checks.       In addition, many guns are stolen or simply
    "lost"    from    firearm    companies'     inventory,       and     frequently
    thereafter end up in Mexico.       According to the complaint, some of
    these "lost" guns are actually sold off the books, with dealers
    choosing not to implement anti-theft measures to allow them to
    falsely claim the guns were stolen.
    Mexico   alleges    that    defendants    are    aware    of   these
    practices and the resulting trafficking of guns into Mexico, yet
    deliberately     maintain   a   distribution   system       that   facilitates
    - 8 -
    illegal sales, resisting calls for reform by the U.S. government
    and prominent gun industry insiders, among others.               Not only that,
    but defendants are aware that specific distributor and dealer
    networks are disproportionately associated with gun trafficking
    into Mexico.       Mexico alleges that defendants are on notice as to
    which    dealers    are    responsible      for   the   lion's   share    of   gun
    trafficking.       Mexico points to data collected by the U.S. Bureau
    of Alcohol, Tobacco, Firearms and Explosives (ATF) and a 2010 news
    article naming twelve dealers that sold the most guns recovered in
    Mexico.    Despite having access to this information, defendants
    continue supplying guns to those same dealers.
    Importantly, according to the complaint, the aspects of
    defendants'      businesses      that     facilitate    trafficking      are   not
    unfortunate and unintended byproducts of a lawful enterprise.
    Rather,   they     are    the    result   of    defendants'   affirmative      and
    deliberate efforts to create and maintain an illegal market for
    their weapons in Mexico.             Says Mexico, supplying guns to the
    illegal market in Mexico is "a feature, not a bug," of defendants'
    businesses.        And the motivation behind this feature is money.
    Mexico    estimates       that    defendants      collectively   receive       over
    $170 million a year from sales of guns trafficked into Mexico.                  As
    a result of the profit potential of the Mexican market, gun dealers
    along the border have proliferated while elsewhere in the nation
    their numbers have decreased.             Gun dealers in border states now
    - 9 -
    sell twice as many guns as dealers in other parts of the country.
    As stated succinctly by Mexico, defendants "are not accidental or
    unintentional players in this tragedy; they are deliberate and
    willing participants, reaping profits from the criminal market
    they knowingly supply -- heedless of the shattering consequences
    to [Mexico] and its citizens."
    II.
    Defendants filed multiple motions to dismiss Mexico's
    complaint. All defendants moved to dismiss for lack of Article III
    standing under Federal Rule of Civil Procedure 12(b)(1) and for
    failure to state a claim under Rule 12(b)(6).       Some defendants
    also moved to dismiss for lack of personal jurisdiction under
    Rule 12(b)(2). The district court held that Mexico had Article III
    standing, but it dismissed two counts for failure to state a claim
    on which relief could be granted.3     It also found that litigation
    of the remaining counts was barred by the PLCAA, which prohibits
    the filing of a "qualified civil liability action" -- defined as
    "a civil action or proceeding . . . against a manufacturer or
    seller of a qualified product . . . for damages . . . resulting
    from the criminal or unlawful misuse of a qualified product by the
    person or a third party" -- in "any Federal or State court."
    3  The two counts were state statutory claims under the
    Connecticut Unfair Trade Practices Act and the Massachusetts
    Consumer Protection Act, respectively. Mexico does not, on appeal,
    challenge the dismissal of those counts.
    - 10 -
    
    15 U.S.C. §§ 7902
    (a), 7903(5)(A).      It therefore dismissed the
    complaint without addressing the motions to dismiss for lack of
    personal jurisdiction.   Mexico timely appealed, raising multiple
    challenges to the district court's application of the PLCAA to
    this lawsuit.
    III.
    Mexico first contends that the PLCAA does not apply to
    lawsuits brought by foreign governments for harm suffered outside
    the United States.   It raises three arguments in support of this
    contention: first, that applying the PLCAA to such a lawsuit is an
    impermissible extraterritorial application of the statute; second,
    that the PLCAA's substantive terms must be interpreted to have
    only domestic scope; and third, that principles of international
    comity support Mexico's reading of the statute.   We address these
    arguments in turn, finding them ultimately unavailing.
    A.
    "Courts presume that federal statutes 'apply only within
    the territorial jurisdiction of the United States.'"     WesternGeco
    LLC v. ION Geophysical Corp., 
    138 S. Ct. 2129
    , 2136 (2018) (quoting
    Foley Bros. v. Filardo, 
    336 U.S. 281
    , 285 (1949)).       This rule,
    commonly called the presumption against extraterritoriality, is a
    "canon of construction" that guides our interpretation of federal
    statutes. Yegiazaryan v. Smagin, 
    599 U.S. 533
    , 541 (2023) (quoting
    Morrison v. Nat'l Austl. Bank Ltd., 
    561 U.S. 247
    , 255 (2010)).
    - 11 -
    Under the presumption, we construe federal laws "to have only
    domestic     application"     unless      we     find       "clearly      expressed
    congressional intent to the contrary."               
    Id.
     (quoting RJR Nabisco,
    Inc. v. European Cmty., 
    579 U.S. 325
    , 335 (2016)). The presumption
    "reflects concerns of international comity insofar as it 'serves
    to protect against unintended clashes between our laws and those
    of other nations which could result in international discord.'"
    
    Id.
     (quoting Kiobel v. Royal Dutch Petroleum Co., 
    569 U.S. 108
    ,
    115 (2013)).      And it also embodies "the commonsense notion that
    Congress generally legislates with domestic concerns in mind."
    
    Id.
     (quoting Smith v. United States, 
    507 U.S. 197
    , 204 n.5 (1993)).
    A     two-step    framework        applies       to    questions     of
    extraterritoriality.      RJR Nabisco, 579 U.S. at 337.             "At the first
    step, we ask whether the presumption against extraterritoriality
    has been rebutted -- that is, whether the statute gives a clear,
    affirmative indication that it applies extraterritorially."                      Id.
    If so, then an extraterritorial application of the statute is
    permissible.      Id.   If not, we proceed to the second step and ask
    if   the   statute's    application    in      the   case    at    hand   is   truly
    extraterritorial or if, instead, "the case involves a domestic
    application of the statute."       Id.
    The    district    court      concluded         that    the    PLCAA's
    prohibition of lawsuits by "any governmental entity" and various
    references to "foreign commerce" fell short of a clear expression
    - 12 -
    of     congressional       intent       that     the      statute         applies
    extraterritorially.        It   therefore      held   that    the     presumption
    against extraterritoriality had not been overcome at step one.
    Defendants do not object to this holding on appeal.                 Nor do we see
    any need to question it, given that we agree with the district
    court's conclusion at step two: that the application of the PLCAA
    in    this    case   is    permissibly      domestic,     not     impermissibly
    extraterritorial.
    Determining    whether    an   application      of   a   statute   is
    domestic or extraterritorial requires us to
    look[] to the statute's "focus."      If the
    conduct relevant to the statute's focus
    occurred in the United States, then the case
    involves a permissible domestic application
    even if other conduct occurred abroad; but if
    the conduct relevant to the focus occurred in
    a foreign country, then the case involves an
    impermissible extraterritorial application
    regardless of any other conduct that occurred
    in U.S. territory.
    Id.     "The    ultimate    question     regarding     permissible       domestic
    application turns on the location of the conduct relevant to the
    focus."      Abitron Austria GmbH v. Hetronic Int'l, Inc., 
    600 U.S. 412
    , 422 (2023).      We therefore first ascertain the focus of the
    PLCAA and then determine where the conduct relevant to that focus
    occurred.
    "The focus of a statute is the object of its solicitude,
    which can include the conduct it seeks to regulate, as well as the
    - 13 -
    parties and interests it seeks to protect or vindicate."                       Id. at
    418 (internal quotation marks omitted) (quoting WesternGeco, 
    138 S. Ct. at 2136
    ).      The "conduct" that the PLCAA "seeks to regulate"
    is the filing and adjudication of certain lawsuits in domestic
    courts.    See 
    15 U.S.C. § 7901
    (b)(1), (4) (stated purposes include
    "prohibit[ing] causes of action" and "prevent[ing] the use of such
    lawsuits to impose unreasonable burdens on interstate and foreign
    commerce").       Its operative provision states that "[a] qualified
    civil liability action may not be brought in any Federal or State
    court," and that any such pending actions "shall be immediately
    dismissed by the court."         
    Id.
     § 7902.        That is the only "conduct"
    that the statute "regulate[s]."
    The     PLCAA   is   also    explicit    about       "the    parties   and
    interests it seeks to protect."            Its stated "purposes" are, among
    other     things,     "[t]o      prohibit        causes     of     action     against
    manufacturers,        distributors,         dealers,        and     importers        of
    firearms . . . for the harm solely caused by the criminal or
    unlawful    misuse    of    firearm     products,"        and    "[t]o    preserve    a
    citizen's access to a supply of firearms and ammunition for all
    lawful     purposes."         Id.   § 7901(b)(1),          (2);    see      also   id.
    § 7901(a)(5)–(8) (finding that the firearm industry should not be
    liable for third parties' unlawful acts and that lawsuits seeking
    to   impose    such     liability        abuse     the     legal     system);      id.
    § 7901(a)(1)-(2) (invoking the Second Amendment).                        In short, it
    - 14 -
    seeks to protect (1) U.S. firearm companies and their interests in
    manufacturing, marketing, and selling guns to the public; and
    (2) U.S. citizens and their interests in having access to guns.
    We therefore agree with the district court's conclusion
    that the PLCAA's focus is "regulat[ing] the types of claims that
    can be asserted against firearm manufacturers and sellers . . . to
    protect the interests of the United States firearms industry and
    the rights of gun owners."            Estados Unidos Mexicanos v. Smith &
    Wesson Brands, Inc., 
    633 F. Supp. 3d 425
    , 444 (D. Mass. 2022).
    Mexico resists this conclusion by proposing a different
    focus of the PLCAA: "gun misuse and the resulting injury."                    It
    argues that the district court erred by looking only at the PLCAA's
    operative provision -- which prohibits "qualified civil liability
    action[s],"     
    15 U.S.C. § 7902
        --   and    not   its   definitions
    section -- which defines such actions as "civil action[s] or
    proceeding[s]    or . . .        administrative    proceeding[s]"     for   harm
    "resulting from the criminal or unlawful misuse of a qualified
    product by the person or a third party," 
    id.
     § 7903(5)(A).
    We agree that statutory provisions do not exist "in a
    vacuum"   and   "must       be   assessed   in    concert     with . . .    other
    provisions."     WesternGeco, 
    138 S. Ct. at 2137
    .              In WesternGeco,
    for example, the Supreme Court determined that the focus of a
    statute   providing     a    remedy   for   patent     infringement   was   "the
    infringement."       
    Id.
     (quoting 
    35 U.S.C. § 284
    ).            But because the
    - 15 -
    statute identified several types of infringement, the Court looked
    to a separate provision to determine what "the infringement" was
    in the case at hand.           
    Id.
         That provision "provide[d] that a
    company 'shall be liable as an infringer' if it 'supplies' certain
    components of a patented invention 'in or from the United States'
    with the intent that they 'will be combined outside of the United
    States    in    a   manner   that    would   infringe       the    patent     if   such
    combination occurred within the United States.'"                       
    Id.
     at 2137–38
    (quoting 
    35 U.S.C. § 271
    (f)(2)).             From this definition, the Court
    gleaned    that       the    regulated       conduct        --    that      is,    "the
    infringement" -- was "the domestic act of 'suppl[ying] in or from
    the United States.'" Id. at 2138 (alteration in original) (quoting
    
    35 U.S.C. § 271
    (f)(2)). So, because it was that domestic act "that
    infringed [the] patents," the "conduct . . . relevant to [the]
    focus clearly occurred in the United States."                    
    Id.
    Mexico contends that we should follow what it sees as a
    similar approach: treat the command of section 7902(a) (precluding
    "qualified      civil   liability     action[s]"       in   any    U.S.     court)   as
    insufficient to determine the focus; look at the definition of
    "qualified      civil   liability     action"    in     section 7903(5)(A)           (as
    meaning    suits     against   defendants      for     damages         resulting   from
    unlawful use of certain firearms); and then declare that the
    statute's focus is actually on certain elements of that definition
    (damages and misuse).
    - 16 -
    But while WesternGeco makes clear that it is sometimes
    necessary to turn to a secondary provision to help give meaning to
    the statute's focus, it does not stand for the proposition that
    whenever a term is defined in a separate provision, all parts of
    that definition become the focus of the statute.            In WesternGeco,
    the   portion   of   the    secondary    provision   on    which   the    Court
    concentrated was the very "infringement" that was the focus of the
    primary provision.      Other parts of the definition -- such as the
    requirement that the components be "especially made or especially
    adapted for use in the invention," id. at 2135 (quoting 
    35 U.S.C. § 271
    (f)(2)) -- were not the statute's focus because they did not
    constitute the act of infringement, which was the focus of the
    primary provision.         Here, "qualified civil liability action[s]"
    are the focus and we look to section 7903(5)(A) simply to define
    the scope of that term, not to find in the elements of that
    definition some other focus.
    To drive this point home, imagine a law stating that "a
    qualified shirt may not be worn in any Federal or State court" and
    defining   "qualified      shirt"   as   "a   collarless   shirt   made    from
    cotton."   Under Mexico's logic, a focus of that statute would be
    the cotton industry.       And therefore the law would not prohibit the
    wearing of collarless shirts made from cotton grown outside the
    United States.       But no reasonable person would think that the
    statute would not apply with equal force regardless of the origin
    - 17 -
    of the cotton in a court attendee's shirt.                  So too, here; Mexico
    cannot shift the focus of the PLCAA from "qualified civil liability
    action[s]" to something else merely because that term -- which
    Mexico    concedes      is   the    focus      of     the      PLCAA's         operative
    provision -- is defined in a separate provision.
    At a more fundamental level, Mexico's argument that the
    statute's focus is "gun misuse and the resulting injury" has too
    little    connection    to   the   PLCAA's     purpose         or    effect.       While
    curtailing gun misuse is a laudable goal (and one that may be the
    focus of other statutes), it is not the goal of the PLCAA.                             That
    statute's purpose, and effect, is to insulate U.S. gun industry
    actors from certain types of lawsuits in domestic courts.                              And
    that conduct is inherently domestic.
    Mexico also argues that to say that the focus of the
    PLCAA is on regulating the types of claims that can be brought
    against    U.S.   gun    industry     actors        "is   so        broad    as   to    be
    tautological"     because    "[a]ll    statutes       'regulate        the     type'     of
    activity to which they are directed, and all such 'regulat[ion]'
    by definition occurs in the United States -- in the U.S. Courts
    that apply the statutes."          But this argument confuses the effect
    of a regulation with its focus; not all statutes are directed
    toward regulating lawsuits in the way the PLCAA is.                         For example,
    the statute in WesternGeco in some sense "regulated" the conduct
    of U.S. courts by creating a cause of action that those courts can
    - 18 -
    adjudicate.        But    the     focus    of    that     statute      was   clearly   on
    regulating patent infringement, e.g., infringement said to occur
    by shipping components overseas for assembly.                       
    138 S. Ct. at
    2137–
    38.     Here, by contrast, the PLCAA seeks to regulate the lawsuits
    themselves.
    Having thus determined the PLCAA's focus, we find it
    evident     that    the     conduct       relevant        to    that      focus   occurs
    domestically.        Both       the   conduct      that       the   statute   seeks    to
    regulate -- the filing and adjudication of lawsuits -- as well as
    the conduct that it seeks to protect -- defendants' manufacturing,
    marketing, and selling of guns -- take place entirely within the
    United States.
    Mexico       argues    finally,       and   mostly       in   passing,   that
    defendants "engage in conduct in Mexico when they aid and abet
    trafficking guns into Mexico."                  The Supreme Court has held that
    "suppl[ying] in or from the United States" components of a patented
    invention with the intent that they be assembled abroad is a
    "domestic act."      
    Id.
     (alteration in original).                  Mexico develops no
    reason why selling guns in the United States with the intent that
    they be resold to persons in Mexico should not similarly be
    considered a domestic act.
    For    all      these     reasons,          the     presumption       against
    extraterritoriality does not bar application of the PLCAA to this
    case.
    - 19 -
    B.
    We   now    turn   to    Mexico's   argument   that    the   PLCAA
    nonetheless by its terms does not apply to a lawsuit brought by a
    foreign government based on damages occurring outside the United
    States caused by misuse outside the United States.               Recall that
    the PLCAA prohibits lawsuits "brought by any person" (including
    "any governmental entity") "against a manufacturer or seller of a
    [firearm] . . . for damages . . . or other relief, resulting from
    the criminal or unlawful misuse of a [firearm] by the person or a
    third party."     
    15 U.S.C. § 7903
    (3), (5)(A).        Mexico argues that
    (1) "criminal or unlawful misuse" means only misuse that occurs in
    the   United    States        and   is     unlawful   under      U.S.   law;
    (2) "damages . . . or other relief" covers only injury incurred in
    the United States; and (3) "any governmental entity" encompasses
    only domestic governmental entities.
    The Supreme Court recently rejected a similar contention
    in Turkiye Halk Bankasi A.S. v. United States, which involved a
    section of the U.S. Criminal Code granting federal district courts
    exclusive jurisdiction over "all offenses against the laws of the
    United States."       
    598 U.S. 264
    , 268-69 (2023) (quoting 
    18 U.S.C. § 3231
    ).   The defendant, a bank owned by the Turkish government,
    argued that because the statute "refers generically to 'all'
    federal criminal offenses without specifically mentioning foreign
    states or their instrumentalities, . . . foreign states and their
    - 20 -
    instrumentalities do not fall within [the statute's] scope."                     Id.
    at 269.    The Court observed that the "text as written" "plainly
    encompasses"      the    defendant's       offenses.          Id.     It   therefore
    "decline[d] to graft an atextual limitation onto [the statute's]
    broad jurisdictional grant over 'all offenses,'" or to "create a
    new clear-statement rule requiring Congress to 'clearly indicat[e]
    its     intent'         to    include       foreign          states    and     their
    instrumentalities."          Id.
    Similarly, in Pfizer, Inc. v. Government of India, the
    Supreme Court considered a provision of the Clayton Act allowing
    "any person" injured by a violation of U.S. antitrust laws to sue
    in U.S. district court.            
    434 U.S. 308
    , 311-12 (1978) (quoting 
    15 U.S.C. § 15
    (a)). The Court held that "any person" includes foreign
    governments, in part because that interpretation furthered the
    "two purposes" of the provision: "to deter violators and deprive
    them of 'the fruits of their illegality,' and 'to compensate
    victims of antitrust violations for their injuries.'"                      Id. at 314
    (quoting Ill. Brick Co. v. Illinois, 
    431 U.S. 720
    , 746 (1977)).
    The Court reasoned that "[t]o deny a foreign plaintiff injured by
    an    antitrust   violation        the   right    to   sue    would   defeat   these
    purposes" because "[i]t would permit a price fixer or a monopolist
    to escape full liability for his illegal actions and would deny
    compensation to certain of his victims, merely because he happens
    to deal with foreign customers."             
    Id.
     at 314–15.
    - 21 -
    Taken together, Turkiye and Pfizer guide our approach to
    interpreting the PLCAA. Here, as in Turkiye, the "text as written"
    does not contain the exceptions Mexico proposes.                Nothing in the
    text of the PLCAA limits its scope to misuse or injury that occurs
    in the United States, or to U.S. plaintiffs.               And, as in Pfizer,
    the   context   and   purpose   of    the     PLCAA    weigh   against   such   a
    limitation.     Congress quite clearly enacted the PLCAA to insulate
    the U.S. gun industry from certain lawsuits.                    See 
    15 U.S.C. § 7901
    (a)(5)–(8); 
    id.
     § 7901(b)(1), (4).              Limiting that protection
    to lawsuits brought for harm occurring in the United States,
    thereby exposing the U.S. gun industry to identical lawsuits for
    harm suffered abroad, would run directly contrary to that purpose.
    We also think it unlikely that Congress intended to allow recovery
    for victims of gun violence occurring abroad but preclude that
    same recovery for victims of gun violence occurring within U.S.
    borders.
    Nevertheless, Mexico urges us to read into the PLCAA an
    implicit domestic restriction on the statute's scope.                It likens
    this case to Small v. United States, which involved a statute
    criminalizing possession of a firearm by "any person . . . who has
    been convicted in any court of, a crime punishable by imprisonment
    for a term exceeding one year."        
    544 U.S. 385
    , 387 (2005) (quoting
    
    18 U.S.C. § 922
    (g)(1)).         There the Supreme Court held that the
    phrase "convicted in any court" encompasses only domestic, not
    - 22 -
    foreign, convictions.       
    Id.
       But at the same time the Court made
    clear that its conclusion would be different "should statutory
    language, context, history, or purpose show the contrary."               Id. at
    391.   Finding "no convincing indication to the contrary" in the
    statute,   the   Court     applied    an   assumption      "similar"   to   the
    presumption      against     extraterritoriality        because    "Congress
    generally legislates with domestic concerns in mind."             Id. at 388,
    391 (quoting Smith v. United States, 
    507 U.S. 197
    , 204 n.5 (1993)).
    The holding in Small provides no succor to Mexico.               As
    we have explained, the PLCAA was also undoubtedly enacted with
    domestic concerns in mind; i.e., the impact of certain types of
    lawsuits   filed   in    domestic     courts     against   domestic    firearm
    companies.    So prohibiting all such lawsuits regardless of who
    brings them perfectly aligns with that domestic concern.               The fact
    that a statute is focused on domestic concerns (here, lawsuits in
    U.S. courts) does not mean that every term in the statute need be
    read as somehow domestically limited.              See, e.g., Turkiye, 598
    U.S. at 269; Pfizer, 434 U.S. at 314–15.            And that is especially
    so where, as here, limiting the statute in this way would run
    directly contrary to its stated purposes.
    Mexico begs to differ.          It points to four "clues" that
    the PLCAA does not apply to lawsuits arising out of the use of
    guns in violation of foreign laws.            We address each in turn.
    - 23 -
    First, Mexico points out that the definition of the term
    "seller" in the PLCAA explicitly includes "importer[s]" but does
    not    explicitly      mention    "exporters."            
    15 U.S.C. § 7903
    (6)(A).
    Similarly, "importers," but not "exporters," are specifically
    identified as a category of business that the PLCAA seeks to
    protect.       
    Id.
     § 7901(b)(1).           Mexico argues that this "confirms"
    that Congress only intended the PLCAA to be domestic in scope.
    But    this     is   too    slender    a    reed     on    which      to   support     the
    interpretation Mexico seeks to advance.                    Even assuming Congress
    intended to exclude from the PLCAA's coverage the export of guns
    (an    issue    we   do    not   decide     here),    that     does     not   alter   our
    conclusion that Congress certainly intended to include all lawful
    domestic sales of guns -- even when those domestically sold guns
    end up causing harm abroad.                 There are plausible reasons why
    Congress might have wanted to protect domestic sellers more than
    exporters, including Congress's stated purpose of "preserv[ing] a
    citizen's access to a supply of firearms and ammunition for all
    lawful purposes."          
    15 U.S.C. § 7901
    (b)(2) (emphasis added).                   If a
    domestic seller goes out of business, that hampers U.S. citizens'
    access to guns more than if an exporter goes out of business.
    Thus, the lack of any express mention of "exporters" does not mean
    that    the    PLCAA      does   not   apply    to    actions      against     domestic
    manufacturers and sellers for harm suffered in another country.
    - 24 -
    Second, Mexico points out that the PLCAA applies only to
    actions "resulting from the criminal or unlawful misuse" of a
    firearm, and excludes any action in which the manufacturer or
    seller knowingly violated a "State or Federal statute" applicable
    to gun sales or marketing.           Mexico argues that "criminal or
    unlawful misuse" should be read as referring only to violations of
    domestic laws, just as "convicted in any court" was read to
    encompass only domestic convictions in Small.            Otherwise, Mexico
    says, the exception for knowing violations of law would presumably
    not be limited to state and federal statutes.           We disagree.     Given
    the basic concern motivating Congress, it makes perfect sense to
    read   "criminal   or   unlawful   misuse"    broadly    as   including   the
    violation of any law.       Otherwise, Congress would have favored
    foreign plaintiffs over domestic plaintiffs and left a gaping hole
    in the shield that was the object of the legislation.
    Mexico replies that Congress would not have required
    U.S. courts   to   interpret   foreign      criminal   law    in   determining
    whether the use of a gun was "criminal or unlawful."                Again, we
    disagree.   Courts in the United States are capable of interpreting
    foreign law, and commonly do so.      See, e.g., Piper Aircraft Co. v.
    Reyno, 
    454 U.S. 235
    , 245 (1981) ("[T]he mere fact that the court
    is called upon to determine and apply foreign law does not present
    a legal problem of the sort which would justify the dismissal of
    a case otherwise properly before the court." (internal quotations
    - 25 -
    omitted)).   Indeed, Mexico asks the court to interpret foreign law
    in this very case by arguing that Mexican law applies.         To the
    extent Mexico is concerned that incorporating foreign law into the
    meaning of "criminal or unlawful use" will introduce "extreme"
    variations, the phrase already reflects the varied laws of fifty
    different states.   See, e.g., Cynthia V. Ward, "Stand Your Ground"
    and Self-Defense, 
    42 Am. J. Crim. L. 89
    , 90 (2015) (describing
    contrasting state approaches to "stand your ground" laws).        The
    PLCAA   precludes   certain   lawsuits   against   firearm   companies
    premised only on others' unlawful use of firearms -- regardless of
    which jurisdiction's law determines that the use was unlawful.
    It also makes perfect sense that in crafting a specific
    and defined exception for knowing violations of law by a defendant,
    Congress would limit the exception to instances in which the
    defendant knowingly violated a "State or Federal statute."       To do
    otherwise and except from the limitations of the PLCAA cases in
    which a manufacturer violated a law of a foreign country would
    grant foreign governments the ability to define the scope of that
    exception.   See Small, 544 U.S. at 389–90 (finding Congress not to
    have granted foreign governments the ability to determine who could
    not own a gun in the United States).       The PLCAA is designed to
    protect domestic firearm companies that operate lawfully in the
    United States under the numerous federal and state laws regulating
    their operations.   See, e.g., 
    15 U.S.C. § 7901
    (a)(4) (finding that
    - 26 -
    the U.S. gun industry is "heavily regulated by Federal, State, and
    local    laws").     That   goal   would    be   hampered    if   the   PLCAA's
    protections fell away whenever a plaintiff alleged a violation of
    only foreign laws -- which may be significantly more restrictive
    than domestic regulations.
    Third, Mexico argues that RJR Nabisco supports its claim
    that "damages . . . or other relief" covers only injury in the
    United States.      RJR Nabisco involved the private right of action
    for "[a]ny person injured . . . by reason of a violation of" the
    Racketeer Influenced and Corrupt Organizations Act (RICO).                  579
    U.S. at 346 (quoting 
    18 U.S.C. § 1964
    (c)).          The Supreme Court held
    that the presumption against extraterritoriality precluded RICO's
    private right of action from applying to injuries suffered abroad.
    
    Id.
         But here, as discussed above, the focus of the PLCAA is not
    on redressing injury but rather on preventing certain lawsuits
    against U.S. firearm companies.        So it is not an extraterritorial
    application of the PLCAA to bar a lawsuit in a U.S. court against
    a U.S. company for harm suffered abroad.             See also WesternGeco,
    
    138 S. Ct. at 2138
        (distinguishing      "injury,"   a    "substantive
    element of a cause of action" in RJR Nabisco, from "damages -- a
    separate legal concept").
    Finally, Mexico argues that the term "any governmental
    entity" excludes foreign governmental entities because the PLCAA's
    factual findings refer to actions "commenced or contemplated by
    - 27 -
    the Federal Government, States, municipalities, private interest
    groups    and     others,"     and     do    not   expressly    mention    foreign
    governments.        
    15 U.S.C. § 7901
    (a)(8); 
    id.
     § 7901(a)(7).                 This
    argument stumbles at the starting line.                  The statements in the
    findings of fact merely reflect that Congress enacted the PLCAA in
    response to actions that had been "commenced or contemplated" by
    the listed entities.          They do not suggest that Congress did not
    intend for the PLCAA to apply to identical lawsuits by others that
    would have the same impact on the U.S. firearm industry.
    In sum, the text, context, and purpose of the PLCAA all
    point    toward    a    conclusion     that      "[q]ualified   civil     liability
    action[s]" include those filed in United States' federal and state
    courts by foreign governments for injury incurred abroad.
    C.
    The        foregoing       brings       us     to   Mexico's      last
    extraterritoriality argument:               Its contention that our reading of
    the statute should give way to Mexico's invocation of international
    comity.    Mexico argues that it is for Congress, not the courts, to
    decide    whether      to   preclude    a    foreign-law    claim   for   injuries
    incurred abroad -- especially when the plaintiff is a foreign
    sovereign.      It therefore urges application of a clear-statement
    rule before reading a statute like the PLCAA to bar such lawsuits.
    In making its comity argument, Mexico turns again to RJR
    Nabisco and its holding that RICO did not create a private cause
    - 28 -
    of action for injuries suffered abroad.              579 U.S. at 346.      In so
    holding, the Supreme Court reasoned that "providing a private civil
    remedy for foreign conduct creates a potential for international
    friction" because it risks "upsetting a balance of competing
    considerations that [foreign countries'] own . . . laws embody."
    Id. at 346–47 (quoting F. Hoffmann-La Roche Ltd. v. Empagran S.A.,
    
    542 U.S. 155
    , 167 (2004)).          Mexico contends that this case is the
    "mirror image" of         RJR Nabisco:          "[P]recluding a claim under
    [foreign]    law    for   injury    incurred      [abroad]"   interferes    with
    foreign sovereigns' application of their laws just as much as
    "granting a claim under U.S. law for injury incurred abroad."                Cf.
    Nestlé    USA,     Inc.   v.    Doe,      
    141 S. Ct. 1931
    ,   1948    (2021)
    (Sotomayor, J., concurring in part and concurring in the judgment)
    ("Closing the courthouse doors . . . gives rise to foreign-policy
    concerns just as invariably as leaving them open." (cleaned up)).
    Therefore, Mexico argues, absent a clear statement from Congress,
    courts should not apply the PLCAA to claims arising under foreign
    law for conduct that occurs in the United States but causes
    injuries abroad.
    We decline to adopt this clear-statement rule for the
    PLCAA.    As should be abundantly clear by now, the PLCAA's focus is
    on protecting U.S. firearm companies from certain costly lawsuits,
    thereby    also    preserving      U.S.    citizens'     access   to   firearms.
    Creating an atextual exception for lawsuits by foreign governments
    - 29 -
    would expose U.S. firearm companies to the very type of lawsuit
    the PLCAA seeks to prohibit, thereby running contrary to its stated
    goals.     In at least this respect, this case is different from RJR
    Nabisco, in which limiting RICO's private cause of action to
    exclude injuries suffered abroad did not undermine any stated
    purposes of the statute.
    The practical consequence of applying the PLCAA to this
    case is not lost on us.       It may be that Mexico, as it claims, would
    be unable to pursue its lawsuit in the only forum that could
    provide effective injunctive relief.                But that is a necessary
    consequence of Congress's decision to protect the U.S. firearm
    industry    by   regulating    the    types    of    lawsuits    that   can    be
    adjudicated by U.S.       courts.      And the prohibition applies to
    lawsuits filed by domestic entities and individuals on an equal
    basis.     Cf. Pfizer, 434 U.S. at 318–19 ("[A] foreign nation is
    generally entitled to prosecute any civil claim in the courts of
    the United States upon the same basis as a domestic corporation or
    individual might do.").
    In sum, we hold that the PLCAA applies to lawsuits by
    foreign    governmental   entities     for    harm    suffered   outside      this
    country, just as it applies to lawsuits by domestic governmental
    entities for harm suffered in this country.                 We turn next to
    Mexico's contention that, even if the PLCAA applies generally to
    - 30 -
    suits by foreign governments for foreign harms, it also excepts
    from its ban claims of the type presented in Mexico's complaint.
    IV.
    As the title of the Protection of Lawful Commerce in
    Arms Act suggests, the statute is designed to protect only "lawful"
    commerce in arms.          It contains various exceptions to ensure that
    it does not insulate firearm companies against lawsuits resulting
    from their unlawful behavior.              One of those exceptions, known as
    the predicate exception, exempts from the PLCAA's clutches "an
    action in which a manufacturer or seller of a qualified product
    knowingly violated a State or Federal statute applicable to the
    sale or marketing of the product, and the violation was a proximate
    cause   of   the    harm    for    which    relief   is   sought."      
    15 U.S.C. § 7903
    (5)(A)(iii).          Mexico contends that its lawsuit meets this
    description.
    Defendants      advance       three     arguments    for   rejecting
    Mexico's contention: first, defendants say that Mexico's claims
    are not for violations of "statute[s]"; second, they contend that
    Mexico's     complaint      does    not    adequately     plead   violations    of
    predicate statutes; and third, they assert that Mexico has not
    adequately alleged proximate cause.                  We conclude that Mexico
    survives each of these threshold challenges at this stage of the
    litigation.        We therefore hold that the PLCAA does not prevent
    this case from moving forward.             Our reasoning follows.
    - 31 -
    A.
    The district court held that Mexico's common law claims
    did not qualify for the predicate exception because, it thought,
    the exception applies only to "statutory claims," not "common-law
    causes of action."          Estados Unidos Mexicanos, 633 F. Supp. 3d at
    446.       Said differently, the district court thought that the "State
    or Federal statute" that the defendant violated, rather than the
    common law, must also provide the private right of action under
    which the plaintiff sues.
    Mexico tells us that no other court has construed the
    PLCAA this way, and points to a variety of decisions applying the
    predicate       exception    to   common    law   claims   alleging   knowing
    violations of statutes.4 Defendants do not contest this assertion,
    nor do they cite any cases construing the PLCAA as the district
    court did in this case.
    4See, e.g., Brady v. Walmart Inc., No. 8:21-cv-1412-AAQ,
    
    2022 WL 2987078
    , at *6–10 (D. Md. July 28, 2022); Prescott v. Slide
    Fire Sols., LP, 
    410 F. Supp. 3d 1123
    , 1139–40 & 1139 n.9 (D. Nev.
    2019); Corporan v. Wal-Mart Stores E., LP, No. 16-2305-JWL, 
    2016 WL 3881341
    , at *3–4 & *4 n.4 (D. Kan. July 18, 2016); City of New
    York v. A-1 Jewelry & Pawn, Inc., 
    247 F.R.D. 296
    , 353 (E.D.N.Y.
    2007); King v. Klocek, 
    187 A.D.3d 1614
    , 1616 (N.Y. App. Div. 2020);
    Englund v. World Pawn Exch., LLC, No. 16CV00598, 
    2017 WL 7518923
    ,
    at *4 (Or. Cir. Ct. June 30, 2017); Chiapperini v. Gander Mountain
    Co., 
    13 N.Y.S.3d 777
    , 787 (N.Y. Sup. Ct. 2014); Williams v.
    Beemiller, Inc., 
    100 A.D.3d 143
    , 150–51 (N.Y. App. Div. 2012),
    amended by 
    103 A.D.3d 1191
     (N.Y. App. Div. 2013); Smith & Wesson
    Corp. v. City of Gary, 
    875 N.E.2d 422
    , 434–35 (Ind. Ct. App. 2007).
    - 32 -
    We,   too,    conclude    that      the    predicate      exception
    encompasses common law claims in addition to statutory claims, as
    long as there is a predicate statutory violation that proximately
    causes the harm.       The text of the PLCAA compels this conclusion.
    While other PLCAA exceptions exempt suits "for" specific causes of
    action, 
    15 U.S.C. § 7903
    (5)(A)(ii), (iv), (v) ("an action . . .
    for negligent entrustment or negligence per se"; "an action for
    breach of contract or warranty"; "an action for [harm arising from
    a product defect]"), the predicate exception more broadly exempts
    actions "in which" the manufacturer or seller violated a statute,
    
    id.
     § 7903(5)(A)(iii).         If    Congress     had   wanted   to    limit   the
    predicate exception to claims for violating a predicate statute,
    it could have simply phrased this exception the same as the others.
    See   Keene    Corp.   v.   United   States,    
    508 U.S. 200
    ,    208   (1993)
    ("[W]here Congress includes particular language in one section of
    a statute but omits it in another . . ., it is generally presumed
    that Congress acts intentionally and purposely in the disparate
    inclusion or exclusion." (omission in original) (quoting Russello
    v. United States, 
    464 U.S. 16
    , 23 (1983))).
    Defendants    reply    that   "in    which"      means    that    the
    statutory violation must be contained "in" the cause of action,
    such that it must be an element of the claim.             Certainly to prevail
    Mexico would need to prove a manufacturer or seller liable for the
    knowing violation of a statute applicable to the sale or marketing
    - 33 -
    of a qualified product.    So proof of a statutory violation is a
    condition to prevailing on, for example, a cause of action for
    negligence.   But that does not mean that a lawsuit for negligence
    cannot be "an action in which . . . a seller . . . knowingly
    violated" a requisite statute.
    The predicate exception's proximate cause requirement
    harmonizes well with this understanding.     The requisite proximate
    cause serves as a nexus between the predicate statutory violation
    and common law claims that otherwise might bear no relation to a
    seller's   transgression   of   firearm   statutes.   This   ensures
    that -- contrary to defendants' protestations -- our reading of
    the predicate exception does not allow any claim at all to proceed
    merely because it is alleged in the same case as an unrelated
    statutory violation.
    The proximate cause requirement makes less sense under
    the district court's reading.     Courts "generally presume that a
    statutory cause of action is limited to plaintiffs whose injuries
    are proximately caused by violations of the statute."        Lexmark
    Int'l, Inc. v. Static Control Components, Inc., 
    572 U.S. 118
    , 132
    (2014).    And for any statutory cause of action containing a
    proximate cause requirement (as most do), the district court's
    reading would render the identical requirement of the predicate
    exception entirely superfluous.    See Consumer Data Indus. Ass'n v.
    Frey, 
    26 F.4th 1
    , 7 (1st Cir. 2022) ("A statute . . . ought to be
    - 34 -
    construed in a way that 'no clause, sentence, or word shall be
    superfluous, void, or insignificant.'" (quoting Duncan v. Walker,
    
    533 U.S. 167
    , 174 (2001))).         Of course, as defendants point out,
    not all statutory causes of action have a built-in proximate cause
    requirement.      But even with this caveat, proximate cause makes far
    more sense as a nexus between a predicate statutory violation and
    other causes of action than as a catchall designed to graft a
    proximate cause requirement onto rare statutory causes of action
    with alternative causation frameworks.
    The examples Congress provided of lawsuits that fit
    within the exception dispel any doubt that the exception allows
    for more than purely statutory causes of action.                  The predicate
    exception    expressly    encompasses,       as   an   example      of   allowed
    lawsuits, "any case in which the manufacturer or seller aided,
    abetted, or conspired with any other person to sell or otherwise
    dispose of a qualified product, knowing, or having reasonable cause
    to believe, that the actual buyer of the qualified product was
    prohibited from possessing or receiving a firearm or ammunition
    under subsection (g) or (n) of section 922 of title 18, United
    States Code" -- conduct made unlawful by the Gun Control Act, 
    18 U.S.C. § 922
    (d).      
    15 U.S.C. § 7903
    (5)(A)(iii)(II).             Yet, nothing
    in section 922 seems to create any private right of action.                   Nor
    does any party suggest that it does.         To the contrary, Mexico cites
    various   cases    holding   that   the   Gun     Control   Act    contains    no
    - 35 -
    statutory private right of action, and defendants do not dispute
    this characterization.5       And given that agreed-upon reading, it
    would make no sense for Congress to have listed such a case as an
    example if only statutory actions could survive under the predicate
    exception.
    Defendants argue that, read to include non-statutory
    causes of action, the predicate exception would "wholly subsume"
    a different exception in the PLCAA for "action[s] brought against
    a seller for . . . negligence per se." 
    15 U.S.C. § 7903
    (5)(A)(ii).
    Generally speaking, negligence per se requires violation of "a
    statute   that      is designed     to   protect    against    the   type   of
    accident the actor's conduct causes" and that the "victim is within
    the   class    of   persons   the   statute    is   designed   to    protect."
    Restatement (Third) of Torts § 14.            Defendants complain that our
    reading of the predicate exception would allow plaintiffs to bring
    any common law claim based on any statutory violation, thereby
    rendering these restrictions superfluous.
    5 The cases that Mexico cites are not from this circuit. See
    Bannerman v. Mountain State Pawn, Inc., No. 3:10-CV-46, 
    2010 WL 9103469
     (N.D. W. Va. Nov. 5, 2010), aff'd, 
    436 F. App'x 151
     (4th
    Cir. 2011); Est. of Pemberton v. John's Sports Ctr., Inc., 
    135 P.3d 174
     (Kan. Ct. App. 2006); T & M Jewelry, Inc. v. Hicks ex
    rel. Hicks, 
    189 S.W.3d 526
     (Ky. 2006).      We do not decide here
    whether the Gun Control Act provides a private right of action.
    For purposes of the present case, we merely accept the parties'
    apparent agreement that it does not.
    - 36 -
    Defendants' argument glosses over the heightened mens
    rea requirement in the predicate exception, which applies only
    when the defendant "knowingly" violates a statute.            So there are
    statutory violations -- i.e., those that are not "knowing" -- that
    may be actionable under the doctrine of negligence per se but do
    not serve as predicate violations. So, there is no superfluousness
    in our reading of the statute.       And it is perfectly sensible for
    Congress to allow claims satisfying the negligence per se standard
    to proceed, while at the same time creating a separate exception
    for knowing violations of statutes regulating the sale or marketing
    of firearms.6
    For   these   reasons,    we    conclude    that   the   predicate
    exception allows common law claims for injury proximately caused
    by a defendant's knowing violation of a predicate statute.                We
    turn next to defendants' contention that Mexico has not adequately
    alleged such a violation.
    B.
    Mexico   alleges   that        defendants   knowingly     violated
    predicate statutes in two ways: by aiding and abetting illegal
    downstream sales, and by selling unlawful "machineguns."
    6  In fact, the district court in this very case found the
    negligence per se exception inapplicable because Massachusetts
    does not recognize the negligence per se doctrine. See Estados
    Unidos Mexicanos, F. Supp. 3d at 449.
    - 37 -
    1.
    First, Mexico reasons that by deliberately facilitating
    the unlawful trafficking of their guns into Mexico, defendants aid
    and abet violations of various federal statutes that prohibit
    selling guns without a license, exporting guns without a license,
    and selling to straw purchasers.                 Resting on their position that
    the predicate exception is limited to statutory causes of action
    (which we have rejected), defendants do not contend that the
    complaint fails to allege widespread sales of firearms by dealers
    in knowing violation of several state and federal statutes.                         Nor
    do    defendants       dispute       that        the     predicate     exception     of
    section 7903(5)(A)(iii) would apply if Mexico were to prove that
    a defendant aided and abetted any such violation.                           Instead,
    defendants contend that even for pleading purposes the complaint
    fails    to   allege    facts    plausibly         supporting    the    theory     that
    defendants have aided and abetted such unlawful sales.
    We disagree, finding instead that Mexico's complaint
    adequately alleges that defendants have been aiding and abetting
    the sale of firearms by dealers in knowing violation of relevant
    state and federal laws.          "[T]he essence of aiding and abetting" is
    "participation in another's wrongdoing that is both significant
    and     culpable   enough       to   justify           attributing   the   principal
    wrongdoing to the aider and abettor."                    Twitter, Inc. v. Taamneh,
    
    598 U.S. 471
    , 504 (2023).
    - 38 -
    Reduced to its essence, aiding-and-abetting liability
    rests on "twin requirements" that the assistance provided to the
    principal wrong-doer be both (1) "knowing" and (2) "substantial."
    Id. at 491-92. These requirements "work[] in tandem, with a lesser
    showing of one demanding a greater showing of the other."                      Id.
    They "'should be considered relative to one another' as part of a
    single   inquiry    designed     to     capture     conscious      and    culpable
    conduct."     Id. at 504 (quoting Camp v. Dema, 
    948 F.2d 455
    , 459
    (8th Cir. 1991)).
    Defendants   argue    that     Mexico     has     at   best    alleged
    defendants'    knowing   indifference          to   the    downstream      illegal
    trafficking of their guns into Mexico.              They argue that "because
    Defendants themselves are not alleged to 'participate' in this
    wrongful conduct at all, much less with any plausible intent of
    facilitating it, they cannot be deemed accomplices."
    This argument reflects a fundamental misunderstanding of
    the complaint.     Fairly read, the complaint alleges that defendants
    are aware of the significant demand for their guns among the
    Mexican drug cartels, that they can identify which of their dealers
    are responsible for the illegal sales that give the cartels the
    guns, and that they know the unlawful sales practices those dealers
    engage in to get the guns to the cartels.                 The complaint further
    alleges that even with all this knowledge, and even after warnings
    from the U.S. government, defendants continue to supply the very
    - 39 -
    dealers that they know engage in straw sales and large-volume sales
    to traffic guns into Mexico, that they design military-style
    weapons and market them as such knowing that this makes them more
    desirable to the cartels, and that they place serial numbers on
    their weapons in a manner that facilitates their removal, as is
    preferred by cartels.   And the complaint alleges that as a result
    of this conduct, defendants collectively reap $170 million per
    year in revenue from this illegal market.           It is therefore not
    implausible that, as the complaint alleges, defendants engage in
    all this conduct in order to maintain the unlawful market in
    Mexico, and not merely in spite of it.
    Notionally,   imagine   a   dealer,   a   distributor,   and   a
    manufacturer standing abreast of one another at the border.          The
    manufacturer hands the distributor ten guns, the distributor hands
    them to the dealer, and the dealer then hands them to a group of
    ten customers, among whom there are eight well-known agents of the
    cartel acting as straw purchasers.      Rather than refusing to fill
    an order for ten more guns by that dealer, the manufacturer tweaks
    its advertisements to better appeal to the cartel, supplies them
    more guns, and so on over and over again.       We think it clear that
    by passing along guns knowing that the purchasers include unlawful
    buyers, and making design and marketing decisions targeted towards
    those exact individuals, the manufacturer is aiding and abetting
    - 40 -
    illegal   sales.        And    this   scenario,    in   substance,    is    fairly
    analogous to what Mexico alleges.
    The allegations here are also remarkably analogous to
    the facts in Direct Sales Co. v. United States, 
    319 U.S. 703
    (1943).       In that case, the defendant company conducted from New
    York a business providing mail-order prescription drugs to doctors
    around the country.        
    Id.
     at 704–06.        One customer was a doctor in
    South   Carolina     who      was   illegally    reselling   morphine      sulfate
    supplied to him by the defendant.           
    Id. at 704
    .      The defendant was
    convicted of criminally conspiring with the doctor. 
    Id. at 704-05
    .
    In affirming the conviction, the Supreme Court pointed to evidence
    that    the    doctor   was    ordering    the    product    in   large    volumes
    incompatible with lawful use by legitimate patients, that the
    defendant facilitated this behavior through mass advertising and
    offering bulk sales at steep discounts (even after the U.S.
    government warned it that it was a source of supply for an illegal
    market), and that the company had a "stake in the venture" in the
    form of profits from the illegally sold drugs.                    
    Id.
     at 706–07,
    712–13.       From this evidence, the Court concluded, the jury could
    have found beyond a reasonable doubt that the defendant supplier
    "not only kn[ew] and acquiesce[d]" in the illegal enterprise, but
    also "join[ed] both mind and hand . . . to make its accomplishment
    possible."      
    Id. at 713
    .
    - 41 -
    Here, similarly, the complaint alleges that defendants
    have resisted taking measures that would make it more difficult
    for their firearms to fall into the cartels' hands                 (despite
    warnings from the U.S. government), that they design and market
    their guns in such a way as to make them attractive to the illegal
    market, and that they benefit financially as a result.            And unlike
    in Direct Sales, the defendants here are alleged to know that they
    supply dealers who sell illegally, making the inference that they
    are working in concert with these unlawful actors even stronger.
    Neither must we determine whether there is evidence of these facts
    sufficient to support a criminal conviction as in Direct Sales; we
    ask only whether the facts alleged in the complaint plausibly
    support an aiding-and-abetting theory of liability in this civil
    case.   Direct Sales strongly supports our conclusion that they do.
    Defendants    attempt      to   distinguish   Direct   Sales   by
    relying on the Court's observation that given the quantities sold
    the drugs could not have all been used for any lawful purpose.
    
    Id.
     at 710–12.    In contrast, they assert, the "vast majority of
    retailers" are law-abiding and "only 2%" of U.S. firearms end up
    in   Mexico.     But    in   Direct    Sales   the   Court   distinguished
    morphine -- a product "incapable of further legal use except by
    compliance with rigid regulations" -- from other commodities "not
    restricted as to sale by order form, registration, or other
    requirements."    
    Id. at 710
    .         The defendant's sales methods and
    - 42 -
    volumes, which might be perfectly innocuous for everyday items,
    were evidence of illicit intent when employed to sell a dangerous
    item whose legitimate market is highly restricted.             
    Id. at 711-12
    .
    "The difference," the Court said, "is like that between toy pistols
    or hunting rifles and machine guns."          
    Id. at 710
    .
    And so in Direct Sales the defendant must have known
    that the sales volume meant there were likely illegal sales, and
    by encouraging volume sales, the defendant could have been found
    to have intended to supply the products for the illegal sales.
    Here we also have a highly regulated product7 allegedly being sold
    in an illegal manner, and an allegation that defendants know what
    is going on and take steps to facilitate it.                In this important
    respect, Direct Sales again provides a close and instructive
    analogy.
    Defendants also point out that Direct Sales rejected the
    proposition that a seller could be held liable for a buyer's
    illegal acts based merely on their knowledge or lack of concern as
    to the buyer's unlawful plans.        But for all the reasons described
    above,   the   complaint      adequately   alleges   that    defendants    make
    deliberate     design   and   distribution   choices   to     facilitate   the
    illegal trafficking of their guns to Mexico.            Thus they are not
    7  As Congress observed in enacting the PLCAA, "[t]he
    manufacture, importation, possession, sale, and use of firearms
    and ammunition in the United States are heavily regulated." 
    15 U.S.C. § 7901
    (a)(4).
    - 43 -
    mere passive observers of the buyer's illegal activity, but more
    akin to a calculated and willing participant in the supply chain
    that ends with a profitable illegal firearm market in Mexico.
    Defendants argue that the Supreme Court's recent opinion
    in Twitter calls for a different result.          We disagree.   In Twitter,
    the Supreme Court held that major social media platforms used by
    ISIS to enlist recruits and raise funds were not liable under the
    Justice Against Sponsors of Terrorism Act for aiding and abetting
    an ISIS terrorist attack on a nightclub in Turkey.               598 U.S. at
    505-07.     The defendants in Twitter had no meaningful stake in
    ISIS's use of their platforms and had an undisputed lack of intent
    to support ISIS.      Id.    The only affirmative conduct that the
    defendants engaged in was creating their platforms and making them
    available to the public, which was not alleged to have been done
    with ISIS in mind or to support terrorism.          Id. at 498.    There was
    also no allegation that ISIS even used the platforms to plan or
    coordinate the attack.      Id.
    Here, by contrast, Mexico alleges that defendants engage
    in conduct -- design decisions, marketing tactics, and repeated
    supplying    of   dealers   known   to     sell    guns   that    cross   the
    border -- with the intent of growing and maintaining an illegal
    market in Mexico from which they receive substantial revenues.
    And for Rule 12(b)(6) purposes we assume that defendants' conduct
    in fact helped incite the unlawful sales. See, e.g., SBT Holdings,
    - 44 -
    LLC v. Town of Westminster, 
    547 F.3d 28
    , 35 (1st Cir. 2008) ("[W]e
    draw all rational inferences from the facts alleged in favor of
    the plaintiffs.").     Defendants are therefore alleged to be much
    more active participants in the alleged activity than were the
    Twitter defendants, and the holding in that case does not compel
    a different result in this one.
    Of course, the complaint does not allege defendants'
    awareness of any particular unlawful sale.            But neither did the
    convicted mail-order company in Direct Sales have such specific
    knowledge.     The Supreme Court clarified in Twitter that such a
    "strict nexus" is not always required.           598 U.S. at 497.        "[I]n
    appropriate circumstances, a secondary defendant's role in an
    illicit enterprise can be so systemic that the secondary defendant
    is aiding and abetting every wrongful act committed by that
    enterprise."    Id. at 496.    Here, defendants operate at a systemic
    level, allegedly designing, marketing, and distributing their guns
    so that demand by the cartels continues to boost sales.               In these
    circumstances,   defendants    need    not    know   about   any    particular
    unlawful sale that funnels their guns into Mexico.
    In    sum,   we   conclude   that    the   complaint      adequately
    alleges that defendants aided and abetted the knowingly unlawful
    downstream trafficking of their guns into Mexico.                  Defendants'
    arguments to the contrary are premised either on an inaccurate
    reading of the complaint or on a misapplication of the standard of
    - 45 -
    review on a motion to dismiss under Rule 12(b)(6).               Whether
    plaintiffs will be able to support those allegations with evidence
    at summary judgment or at trial remains to be seen.       At this stage,
    though, we must "accept all well-pleaded allegations of [Mexico]
    as true and afford all inferences in [Mexico's] favor."         Vázquez-
    Ramos v. Triple-S Salud, Inc., 
    55 F.4th 286
    , 291 (1st Cir. 2022)
    (cleaned up) (quoting Arroyo-Melecio v. P.R. Am. Ins. Co., 
    398 F.3d 56
    , 65 (1st Cir. 2005)).
    2.
    Mexico's     argument   that     defendants   unlawfully   sold
    "machineguns" fares less well.           The Gun Control Act prohibits
    selling a "machinegun" without specific authorization.         
    18 U.S.C. § 922
    (b)(4).   "Machinegun" is defined as follows:
    The term "machinegun" means any weapon which
    shoots, is designed to shoot, or can be
    readily restored to shoot, automatically more
    than one shot, without manual reloading, by a
    single function of the trigger.     The term
    shall also include the frame or receiver of
    any such weapon, any part designed and
    intended   solely    and   exclusively,    or
    combination of parts designed and intended,
    for use in converting a weapon into a
    machinegun, and any combination of parts from
    which a machinegun can be assembled if such
    parts are in the possession or under the
    control of a person.
    
    26 U.S.C. § 5845
    (b).
    Mexico claims that defendants' semiautomatic weapons
    meet this definition because they can easily be modified to fire
    - 46 -
    automatically.      It cites a 1982 ATF administrative ruling stating
    that   this    definition   "includes    those   weapons    which   have   not
    previously functioned as machineguns but possess design features
    which facilitate full automatic fire by a simple modification or
    elimination of existing component parts."           ATF Rul. 82-8, 1982-2
    A.T.F.Q.B. 49 (1982).
    Binding precedent from the Supreme Court and this court
    forecloses Mexico's interpretation.         In Staples v. United States,
    the Supreme Court held that the National Firearms Act -- which
    prohibits possession of an unregistered "machinegun" (as defined
    above) -- requires that the defendant knew that the possessed
    weapon    "had   the   characteristics    that    brought   it    within   the
    statutory definition of a machinegun."           
    511 U.S. 600
    , 602 (1994).
    The defendant in that case possessed an AR-15 rifle, in which
    certain components had been swapped out or filed down to enable
    automatic firing.      Id. at 603.     The Supreme Court held that to be
    properly convicted the defendant must have known that his rifle
    had been so modified.       Id. at 619.    It rejected a reading of the
    statute under which "any person who has purchased what he believes
    to be a semiautomatic rifle or handgun . . . can be subject to
    imprisonment,     despite   absolute    ignorance   of   the     gun's   firing
    capabilities, if the gun turns out to be an automatic."                    Id.
    at 615.    And the majority also rejected the dissent's argument
    based on a class of "readily convertible semiautomatics" because
    - 47 -
    "that class bears no relation to the definitions in the Act."                        Id.
    at 612 n.6.
    Similarly,         in     United    States     v.    Nieves-Castaño,        we
    reversed the conviction of a defendant who knew that she possessed
    an AK-47 but did not know that it had been modified to allow
    automatic firing.        
    480 F.3d 597
    , 602 (1st Cir. 2007).                    We stated
    that "[w]hile an automatic weapon meets the definition of a machine
    gun, a semi-automatic weapon does not."                        
    Id.
     at 600 (citing
    Staples, 511 U.S. at 602 & n.1).
    Mexico        argues      that     Staples    and    Nieves-Castaño        are
    inapposite because those cases were about the mens rea requirement
    for a possession crime, not the definition of "machinegun."                          It
    cites a district court case from Nevada distinguishing Staples on
    this basis.     See Parsons v. Colt's Mfg. Co., No. 19-cv-01189, 
    2020 WL 1821306
    ,      at   *5    (D.     Nev.     Apr. 10,       2020),    modified      on
    reconsideration, No. 19-cv-01189, 
    2020 WL 2309259
     (D. Nev. May 8,
    2020).   But critical to the holdings of both Staples and Nieves-
    Castaño was that knowing possession of a readily convertible
    semiautomatic      weapon     does     not     constitute       de     facto     knowing
    possession    of    a   "machinegun."           In     other    words,     a     readily
    convertible semiautomatic weapon is not, without more, the same as
    an   automatic      weapon.          Mexico's     reading       would    erase      this
    distinction -- creating an equivalency that the holdings of Staples
    and Nieves-Castaño do not allow.              It would also effectively outlaw
    - 48 -
    the   knowing    possession      of    any     semiautomatic       weapon,       since
    "virtually any semiautomatic weapon may be converted . . . into a
    machinegun within the meaning of the Act."              See Staples, 511 U.S.
    at 615.      Whether convertible semiautomatic weapons are to be
    prohibited in their entirety is not an issue presented by this
    appeal.
    C.
    The final hurdle that Mexico must clear is the predicate
    exception's     proximate   cause      requirement.         A    violation       of   a
    predicate    statute   allows    a    lawsuit     to   proceed     only     if    "the
    violation was a proximate cause of the harm for which relief is
    sought."    
    15 U.S.C. § 7903
    (5)(A)(iii).
    Proximate cause "demand[s] 'some direct relation between
    the injury asserted and the injurious conduct alleged.'"                      United
    States v. Kilmartin, 
    944 F.3d 315
    , 330 (1st Cir. 2019) (quoting
    Paroline v. United States, 
    572 U.S. 434
    , 444 (2014)).                     "Proximate
    cause is commonly understood as a function of the foreseeability
    of    the   harm,"   id.    at   331,    although      in       certain    contexts
    foreseeability alone may be insufficient, see, e.g., Bank of Am.
    Corp. v. City of Miami, 
    581 U.S. 189
    , 202 (2017) (Fair Housing
    Act).8
    8 Neither party proposes a definition of proximate cause
    specific to the predicate exception of the PLCAA. In the absence
    of any such suggestions, we apply traditional understandings of
    proximate cause.
    - 49 -
    Mexico's claim of proximate cause is straightforward:
    defendants aid and abet the trafficking of guns to the Mexican
    drug cartels, and this trafficking has foreseeably required the
    Mexican government to incur significant costs in response to the
    increased threats and violence accompanying drug cartels armed
    with an arsenal of military-grade weapons.
    Defendants attempt to complicate this causal theory.
    They maintain that the chain of causation actually has eight steps:
    (1) manufacturers sell guns to distributors; (2) distributors sell
    the guns to dealers; (3) dealers sell the guns to buyers with
    illegal intentions; (4) those buyers sell the guns to smugglers or
    smuggle them into Mexico themselves; (5) the cartels buy the guns;
    (6) the cartels use the guns; (7) the cartels' use of the guns
    injures   people   and   property    in   Mexico;   and   (8) the   Mexican
    government suffers derivative financial harm from those injuries.
    There are at least two fatal flaws in this argument.
    First, the starting point for the predicate exception's
    causation analysis is the "violation" of "a State or Federal
    statute applicable to the sale or marketing" of firearms.            We ask
    whether "the violation" proximately caused the plaintiff's harm.
    
    15 U.S.C. § 7903
    (5)(A)(iii).        Here, the violation that defendants
    allegedly aid and abet occurs when a dealer knowingly violates the
    law in selling guns intended for cartels.           Viewed in this light,
    the relevant chain of causation starts at step 3 of the defendants'
    - 50 -
    list.     And from that point, the Mexican government's expenditure
    of   funds   to   parry    the   cartels   is    a   foreseeable   and   direct
    consequence.
    Second, the fact that one can fashion a multi-step
    description of the causal chain does not mean that the injurious
    conduct    and    the   injury   alleged   are   insufficiently     connected.
    Consider a defendant who falls asleep at the helm of a large ship,
    leaning on the helm, so as to move the tiller, which turns the
    rudder, which then turns the ship off course, hitting and weakening
    a dike, and thereby causing a reasonably cautious downstream farmer
    to build a levee.         Surely the ability to describe this causation
    in multiple steps would not mean that, as a matter of law, the
    negligent    helmsperson      did   not    foreseeably    cause    the   farmer
    compensable harm.         Rather, one would more reasonably say that
    negligently steering the ship foreseeably caused the need to shore-
    up flood defenses.        So, too, here, the complaint plausibly alleges
    that aiding and abetting the illegal sale of a large volume of
    assault weapons to the cartels foreseeably caused the Mexican
    government to shore-up its defenses.
    Defendants nevertheless claim that the Third Circuit
    adopted their view of proximate cause in City of Philadelphia v.
    - 51 -
    Beretta U.S.A. Corp., 
    277 F.3d 415
    , 423–24 (3d Cir. 2002).9               In
    that case, though, Philadelphia alleged "[a]t most . . . awareness
    of the means by which prohibited purchasers end up possessing
    handguns."     
    Id.
     at 424 & n.14.       The "trace request information"
    available at that time "d[id] not put a gun manufacturer on notice
    that a specific distributor or dealer [wa]s engaged in unlawful
    firearm trafficking." 
    Id.
     at 424 n.14. Thus all gun manufacturers
    knew was that "some handguns reach prohibited purchasers."              
    Id.
    And without more, the plaintiffs could not show "intent on the
    part of the gun manufacturers."         
    Id.
         Here, by contrast, Mexico
    expressly alleges that the defendants did know which dealers were
    making illegal sales.
    Defendants further contend that there is no proximate
    cause because the causal chain contains multiple criminal acts by
    third parties.     They argue that "an 'intervening criminal act of
    a third party' is the textbook intervening act," Copithorne v.
    Framingham Union Hosp., 
    520 N.E.2d 139
    , 141 (Mass. 1988).          But the
    complete   sentence   in   Copithorne    from    which   defendants'   brief
    cherry-picks actually states:     "The intervening criminal act of a
    third party is a superseding cause which breaks the chain of
    proximate causation only where the original wrongdoer reasonably
    9  The Third Circuit decided City of Philadelphia before
    Congress enacted the PLCAA, so it analyzed proximate cause under
    negligence law, not the PLCAA. 
    277 F.3d at
    422–26.
    - 52 -
    could   not    have    foreseen     such      act."      Id.;    see     also,     e.g.,
    Restatement      (Second)     of    Torts      § 448     (intervening       crime    is
    superseding cause "unless the actor at the time of his negligent
    conduct realized or should have realized the likelihood . . . that
    a third person might avail himself of the opportunity to commit
    such a . . . crime"); id. § 449 ("If the likelihood that a third
    person may act in a particular manner is the hazard or one of the
    hazards which makes the actor negligent, such an act whether
    innocent, negligent, intentionally tortious, or criminal does not
    prevent the actor from being liable for harm caused thereby.").
    Here, the complaint alleges not only that it was foreseeable that
    defendants' guns would end up in the hands of Mexican cartels, but
    also that defendants actually intended to bring about that result.
    And it is certainly foreseeable that Mexican drug cartels -- armed
    with defendants' weapons -- would use those weapons to commit
    violent crimes.        The acts of these third parties are therefore
    properly considered as part of the proximate causation chain.
    Defendants'      superseding-criminal-act                 argument      is
    especially     unconvincing        in   the    context    of     the    PLCAA,     which
    precludes     only    those   claims     "resulting       from    the    criminal     or
    unlawful misuse of a qualified product" by someone other than the
    defendant.      
    15 U.S.C. § 7903
    (5)(A).           If a third party's unlawful
    act always undercuts proximate cause, the predicate exception
    would be meaningless.         See Abramski v. United States, 573 U.S.
    - 53 -
    169, 183 n.8 (2014) (rejecting an interpretation of a gun-control
    statute that "would render the statute all but useless").
    Defendants then shift focus from the conduct to the
    injury.     They argue that the Mexican government's alleged harms
    are wholly derivative of injuries suffered by the direct victims
    of cartel violence, citing a "general tendency of the law" not to
    stretch proximate causation "beyond [its] first step" to reach
    indirect victims.        Holmes v. Sec. Inv. Prot. Corp., 
    503 U.S. 258
    ,
    271 (1992) (quoting Associated Gen. Contractors v. Cal. State
    Council of Carpenters, 
    459 U.S. 519
    , 534 (1983)).                Under this
    principle, "a plaintiff who complained of harm flowing merely from
    the misfortunes visited upon a third person by the defendant's
    acts was generally said to stand at too remote a distance to
    recover."    
    Id.
     at 268–69; see also Lexmark, 
    572 U.S. at 133
    .
    Some courts have applied this principle to bar similar
    lawsuits by cities against gun manufacturers.           For example, the
    Third Circuit held that Philadelphia had not alleged proximate
    cause because it sought "reimbursement for expenses that arise
    only because of the use of firearms to injure or threaten City
    residents," even though some of the alleged damages were "different
    from   the     damages      suffered    by   direct    victims     of   gun
    violence"    --   like    costs   to   "investigate   and   prosecute   gun
    trafficking[ and] to patrol gun infested neighborhoods."            City of
    - 54 -
    Philadelphia, 
    277 F.3d at 425
    ; see also Ganim v. Smith & Wesson
    Corp., 
    780 A.2d 98
    , 124 (Conn. 2001) (applying similar reasoning).
    On the other hand, some courts have recognized that
    selling guns into an illegal market may cause direct harm to a
    governmental   entity   that    is     not    derivative    of    harm    to   its
    residents.   A court in Massachusetts allowed the city of Boston to
    proceed in its lawsuit against firearm companies where the city
    alleged   various   direct   harms     resulting    from    the     defendants'
    "fueling an illicit market" of guns.            City of Boston v. Smith &
    Wesson Corp., No. 199902590, 
    2000 WL 1473568
    , at *6 (Mass. Super.
    July 13, 2000).     Such harms included costs of increased security
    at public schools, costs of increased law enforcement, lower
    property values, and diminished tax revenues.               
    Id.
        The Supreme
    Court of Ohio adopted this reasoning, finding direct injuries in
    the form of "significant expenses for police, emergency, health,
    prosecution,   corrections     and    other    services."        Cincinnati     v.
    Beretta   U.S.A.    Corp.,   
    768 N.E.2d 1136
    ,   1148      (Ohio   2002).
    Similarly, a New Jersey court rejected a remoteness argument with
    respect to expenditures associated with "deterrence, investigation
    of gun crimes, and other related services."             James v. Arms Tech.,
    Inc., 
    820 A.2d 27
    , 41 (N.J. Super. Ct. App. Div. 2003); see also
    In re JUUL Labs, Inc., Mktg., Sales Practices & Prods. Liab.
    Litig., 
    497 F. Supp. 3d 552
    , 664-65 (N.D. Cal. 2020) (finding
    - 55 -
    proximate cause where government entities "do not seek to recover
    costs expended by . . . any other third party").
    We find the reasoning of the latter cases persuasive.
    When faced with an epidemic of unlawful gun trafficking into its
    country,     a     government        will      foreseeably      --     indeed
    inexorably -- incur costs of its own that are not merely derivative
    of those borne by the direct victims of gun violence.            One obvious
    example is the cost of increased law enforcement personnel and
    training to mitigate the flow of illegal weapons and to combat
    drug   cartels   that   --   armed    with    defendants'    weapons   --   are
    essentially hostile military operations.           The government directly
    and uniquely bears these costs as a direct result of defendants'
    alleged facilitation of gun trafficking to the Mexican cartels.
    Imagine that a U.S. company sent a mercenary unit of
    combat troops to attack people in Mexico City.               Such an attack
    would directly cause Mexico itself the expense of paying soldiers
    to defend the city.      Proximate cause would be quite clear.              So,
    too, here, where the defendants are alleged to have armed the
    attackers for their continuing assaults.
    Mexico may also be able to show that other of its alleged
    harms are proximately caused by defendants' actions, and not merely
    derivative of harms to its citizens.           For example, if Mexico can
    prove that it had to proactively spend more funds to bolster its
    healthcare facilities, social services, and judicial system in
    - 56 -
    response to the cartels' accumulation of defendants' guns, these
    expenses might also not be merely derivative of the injuries
    suffered by individual victims.           On the other hand, other alleged
    harms, such as lower economic efficiency due to the decreased size
    of the working population, are derivative because the harm to the
    government flows only from prior harm inflicted upon its citizens.
    The bottom line is that Mexico has plausibly alleged at least some
    injuries that it has suffered directly from the illegal trafficking
    of guns into Mexico, and that are not merely derivative of the
    harm suffered by the victims of gun violence.
    This   conclusion      is   consistent    with     Supreme      Court
    precedent.    In Holmes (a RICO case), the Court held that there was
    no proximate cause linking the defendants' manipulation of stock
    prices, which caused broker-dealers who purchased the stock to
    experience financial distress, to the harm suffered by the broker-
    dealers' customers when the broker-dealers could not pay the
    customers' claims.      503 U.S. at 271–74.         In that case, the only
    path from the stock manipulation to the customers' harm was through
    the broker-dealers' harm.          Id. at 271 ("[T]he conspirators have
    allegedly    injured    these   customers    only    insofar    as   the    stock
    manipulation    first    injured    the    broker-dealers      and   left    them
    without the wherewithal to pay customers' claims.").
    Contrast the situation in Holmes from one contemplated
    by the Court in Lexmark:
    - 57 -
    Consider two rival carmakers who purchase
    airbags for their cars from different third-
    party manufacturers. If the first carmaker,
    hoping to divert sales from the second,
    falsely proclaims that the airbags used by the
    second carmaker are defective, both the second
    carmaker and its airbag supplier may suffer
    reputational injury, and their sales may
    decline as a result. In those circumstances,
    there is no reason to regard either party's
    injury as derivative of the other's; each is
    directly and independently harmed by the
    attack on its merchandise.
    572 U.S. at 138–39.
    This case is more like the airbag example in Lexmark
    than the stock manipulation in Holmes.              Unlike in Holmes, the
    causal path from the gun trafficking to the Mexican government's
    expenditures does not flow solely through the harm suffered by
    victims of gun violence.      Rather, like in the airbag example, the
    harm caused by the trafficking goes in multiple directions -- both
    directly to the victims of gun violence and directly to the Mexican
    government.        Admittedly,     the   government's     expenditures     are
    presumably    in   large   part    for   the   purpose   of   preventing   and
    mitigating the harm from gun violence to its citizens.              But that
    does not make it "purely derivative" in the sense that sometimes
    defeats proximate cause.      See id. at 133.
    Defendants'      final    attack     on   proximate   cause    is   a
    pragmatic one.     Defendants point to two "functional factors" that
    courts apply while analyzing proximate cause under RICO: the
    feasibility of "ascertain[ing] the amount of a plaintiff's damages
    - 58 -
    attributable    to     the   violation,      as     distinct     from    other,
    independent, factors"; and the "administrability" of apportioning
    damages    without     "multiple    recoveries."           Sterling      Suffolk
    Racecourse, LLC v. Wynn Resorts, Ltd., 
    990 F.3d 31
    , 35-36 (1st
    Cir. 2021) (quoting In re Neurontin Mktg. & Sales Pracs. Litig.,
    
    712 F.3d 21
    , 35–36 (1st Cir. 2013)).
    Assuming these considerations apply outside of the RICO
    context, they would not require the dismissal of the complaint in
    this case.     The foregoing discussion concerning Mexico's non-
    derivative harm disposes of defendants' concern about multiple
    recoveries. We are also not persuaded that determining the damages
    attributable to each defendant will be as difficult as defendants
    suggest.   And in this case any such difficulties are best resolved
    once Mexico has had an opportunity to engage in discovery and
    submit expert reports bearing on damages.            Accord City of Boston,
    
    2000 WL 1473568
    , at *7 n.33 ("The difficulty in ascertaining
    damages in this case is best assessed when the case has gone beyond
    the pleading stage.").         In any event, Mexico seeks injunctive
    relief in addition to damages, and defendants' concerns about
    double    recoveries   and   apportioning        damages   do   not    apply   to
    injunctive relief.      Cf. Lexmark, 572 U.S. at 135 ("Even when a
    plaintiff cannot quantify its losses with sufficient certainty to
    recover    damages,    it    may   still    be    entitled      to    injunctive
    relief . . . .").
    - 59 -
    We conclude that Mexico has adequately alleged proximate
    causation, thereby satisfying the final demand of the predicate
    exception.    Of course, our holding at this stage is based on the
    allegations   in   the   complaint,    construed   favorably   to   Mexico.
    Mexico will have to support its theory of proximate causation with
    evidence later in the proceedings.
    V.
    The parties' briefing touches on certain issues beyond
    the PLCAA, including which jurisdiction's law governs Mexico's
    tort claims and whether defendants owe a duty to Mexico under
    whichever tort law does apply.         The district court did not reach
    these issues because it found the PLCAA dispositive.                 Having
    concluded that the PLCAA does not bar Mexico's lawsuit at this
    stage of the proceedings, we think it prudent to allow the district
    court to address the remaining issues in the first instance, rather
    than deciding them ourselves without the benefit of the district
    court's analysis or focused briefing from the parties.
    VI.
    For   the   foregoing   reasons,    we   reverse   the    district
    court's conclusion that the PLCAA bars Mexico's tort claims and
    remand to the district court for further proceedings consistent
    with this opinion.
    - 60 -
    

Document Info

Docket Number: 22-1823

Filed Date: 1/22/2024

Precedential Status: Precedential

Modified Date: 1/22/2024