United States v. Simpkins ( 2020 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 19-1948
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    ROBERT SIMPKINS,
    Defendant, Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MAINE
    [Hon. Nancy Torresen, U.S. District Judge]
    Before
    Torruella, Selya, and Thompson,
    Circuit Judges.
    Sarah A. Churchill and Nichols & Churchill, P.A. on brief for
    appellant.
    Halsey B. Frank, United States Attorney, and Julia M. Lipez,
    Assistant United States Attorney, on brief for appellee.
    October 15, 2020
    SELYA, Circuit Judge.           When gauging the validity of a
    motor vehicle search under the so-called automobile exception to
    the warrant requirement of the Fourth Amendment, see U.S. Const.
    amend. IV, probable cause furnishes the beacon by which courts
    must steer.      In this appeal, defendant-appellant Robert Simpkins
    asseverates that the district court misfigured the probable cause
    equation.        Concluding,   as   we   do,      that   this   asseveration    is
    groundless and that the defendant's other claims of error are
    equally futile, we affirm the judgment below.
    I. BACKGROUND
    We    rehearse   the    facts    as    supportably    found   by   the
    district court following an evidentiary hearing on the defendant's
    motion to suppress both physical evidence and statements made at
    the scene of a traffic stop.          When necessary, we flesh out these
    findings with uncontested facts drawn from the record.               See United
    States v. Dancy, 
    640 F.3d 455
    , 458 (1st Cir. 2011).
    On March 21, 2018, a traffic stop conducted by the Maine
    State Police netted a driver in possession of a large quantity of
    oxycodone pills and Suboxone strips.              That driver, whom we shall
    call "CD," subsequently became a cooperating defendant.                   He told
    the troopers that he had bought the contraband from "Rob," an
    individual who lived in Rhode Island.               Text messages between CD
    and Rob, disclosed to the troopers, discussed prices and quantities
    of "pinks," "green ones," and "strips."             CD added to the troopers'
    - 2 -
    store of knowledge by furnishing a cellphone number for Rob, a
    description of Rob's house and car, and an insight that while CD
    usually traveled to Rob to buy drugs, Rob sometimes traveled to
    Maine.
    Working with the federal Drug Enforcement Administration
    (DEA), the Maine State Police discovered that the cellphone number
    supplied by CD belonged to defendant-appellant Robert Simpkins.        A
    photograph of the defendant was obtained from the Rhode Island
    Department of Motor Vehicles and shown to CD, who confirmed that
    the individual depicted was the man who had been selling drugs to
    him.     Further research confirmed that the defendant's residence
    and vehicle matched the descriptions provided by CD.
    In April of 2018, CD began working with law enforcement
    officers to orchestrate a meeting with the defendant in Maine.         On
    April 4, CD called the defendant and told him that he was unable
    to make a planned trip to Rhode Island and asked that the defendant
    advise him about any sojourns he might be taking to Maine.           This
    call     was    recorded   and,   after    some   further   (unmonitored)
    communications between the two men, the defendant agreed that he
    would come to Maine on April 28.
    When April 28 dawned, surveillance of the defendant
    commenced outside his Rhode Island home.          A DEA task force member
    observed the defendant load several items into his car, including
    a box that he placed in the trunk.         Between loads, the defendant
    - 3 -
    locked his car and kept a wary eye on his surroundings.                      Before
    the defendant left for Maine, CD called him and asked for a final
    price.   The defendant responded by texting that he was "[h]eading
    out about 2" and was looking for "3850 if it ain't short."
    Once his car was loaded, the defendant drove to a nearby
    parking lot, exited his vehicle, and entered another vehicle.                   The
    second vehicle drove a short distance before doubling back and
    returning the defendant to his own car. The defendant then started
    his drive to Maine, followed surreptitiously by members of the
    task force.
    Shortly      after    crossing    the    border    into   Maine,   the
    defendant's vehicle was intercepted by the Maine State Police.
    Because they were aware that the defendant owned a number of
    firearms, the troopers followed their procedures for high-risk
    arrests:     they removed the defendant from his car at gunpoint,
    ordered him to the ground, and handcuffed him.                   Asked if he had
    "anything    on"     him,    the   defendant   stated    that    he    had   only   a
    pocketknife.       Palpating another item while conducting a pat-down
    of the handcuffed defendant, the trooper asked:                   "What's that?"
    The defendant replied that the bulge was "[j]ust a little bit of
    fentanyl."
    Next,    a     drug-sniffing     dog    explored   the    inside   and
    outside of the defendant's vehicle.                 The dog, trained to detect
    several types of narcotics but not oxycodone or Suboxone, did not
    - 4 -
    alert. Nevertheless, a search of the defendant's vehicle disclosed
    an   envelope     containing             Suboxone       strips     in   the   passenger
    compartment and thereafter a box containing an electrical device
    called a ballast in the trunk.                   Concealed behind a panel on the
    ballast was a smell-resistant "Stink Sack" holding quantities of
    oxycodone and other illicit substances.
    While the vehicle search was underway, a state trooper
    spoke with the defendant in a police cruiser.                       After reading the
    defendant his Miranda rights, see Miranda v. Arizona, 
    384 U.S. 436
    , 444-45 (1966), the trooper told him that he had been detained
    as part of a federal investigation into drug-trafficking and urged
    his cooperation. The defendant admitted to possessing the fentanyl
    found in his pocket, and he later admitted to possessing the
    Suboxone   found       in    his     car.        He    nonetheless      disclaimed   any
    involvement in drug-trafficking.                      Then — upon seeing a trooper
    open the ballast — he blurted out that "[s]he found it all."                         At
    that point, the defendant was arrested.
    In due season, a federal grand jury sitting in the
    District of Maine returned a superseding indictment charging the
    defendant with conspiracy to distribute and possess with intent to
    distribute    oxycodone,           see    
    21 U.S.C. §§ 841
    (a)(1),   846,   and
    possession      with        intent       to    distribute        oxycodone,   see    
    id.
    § 841(a)(1).     The defendant maintained his innocence and moved to
    suppress both the physical evidence found during the search of his
    - 5 -
    vehicle and the statements he had made at the scene.    In support,
    he argued that the authorities lacked probable cause to search his
    car and that his statements were obtained in derogation of his
    Miranda rights.
    After an evidentiary hearing and plethoric briefing, the
    district court denied the defendant's motion to suppress.       See
    United States v. Simpkins, No. 2:18-cr-115, 
    2019 WL 148650
    , at *1
    (D. Me. Jan. 9, 2019).      In the aftermath of that ruling, the
    defendant entered a conditional guilty plea to count 2 (possession
    with intent to distribute oxycodone), preserving his right to
    appeal the denial of his motion to suppress.       On September 10,
    2019, the district court dismissed count 1 of the indictment on
    the government's motion and sentenced the defendant to a twenty-
    four-month term of immurement on count 2.       This timely appeal
    followed.
    II. ANALYSIS
    Our analysis proceeds in two main parts.      First, we
    examine the defendant's contention that the authorities lacked
    probable cause to search his vehicle.       Second, we examine his
    Miranda-based claims.    We subdivide this latter examination into
    distinct segments, focusing separately on statements made before
    and after the provision of Miranda warnings.
    Our standard of review is familiar.     We appraise the
    district court's denial of the motion to suppress through a
    - 6 -
    bifurcated lens, accepting the court's findings of fact unless
    clearly erroneous but subjecting its legal conclusions to de novo
    review.   See United States v. Arnott, 
    758 F.3d 40
    , 43 (1st Cir.
    2014); United States v. Chhien, 
    266 F.3d 1
    , 5 (1st Cir. 2001).    In
    the absence of legal error, "we will uphold a refusal to suppress
    evidence as long as the refusal is supported by some reasonable
    view of the record."       United States v. Arthur, 
    764 F.3d 92
    , 96
    (1st Cir. 2014) (quoting United States v. Lee, 
    317 F.3d 26
    , 29-30
    (1st Cir. 2003)).
    A.   The Vehicle Search.
    When the so-called "automobile exception" applies — and
    this is such a case — a warrantless search of an automobile may
    proceed so long as the authorities have probable cause to believe
    that contraband is within the particular vehicle.1    See California
    v. Acevedo, 
    500 U.S. 565
    , 580 (1991); United States v. Silva, 
    742 F.3d 1
    , 7 (1st Cir. 2014).      A finding of probable cause does not
    demand proof beyond a reasonable doubt but, rather, may be made
    1 The "automobile exception" recognizes that the "ready
    mobility" of motor vehicles makes strict adherence to the Fourth
    Amendment's warrant requirement practically impossible. Collins
    v. Virginia, 
    138 S. Ct. 1663
    , 1669 (2018) (quoting California v.
    Carney, 
    471 U.S. 386
    , 390 (1985)). As relevant here, the exception
    applies when a moving vehicle susceptible of transporting
    contraband is lawfully stopped by the police on a public highway.
    See, e.g., Carroll v. United States, 
    267 U.S. 132
    , 149 (1925). If
    at that point the police have probable cause to believe that the
    vehicle contains evidence of criminal activity, they may search
    the vehicle without first obtaining a warrant. See United States
    v. White, 
    804 F.3d 132
    , 136 (1st Cir. 2015).
    - 7 -
    "when the totality of the circumstances create 'a fair probability
    that   contraband    or   evidence   of   a    crime    will   be   found   in   a
    particular place.'"       United States v. Almonte-Báez, 
    857 F.3d 27
    ,
    31-32 (1st Cir. 2017) (quoting United States v. Tanguay, 
    787 F.3d 44
    , 50 (1st Cir. 2015)).          Intelligence supplied by an informant
    may support a finding of probable cause when "the probability of
    a lying or inaccurate informer has been sufficiently reduced."
    United States v. Gifford, 
    727 F.3d 92
    , 99 (1st Cir. 2013) (quoting
    United States v. Greenburg, 
    410 F.3d 63
    , 69 (1st Cir. 2005)).
    In order to assist in assessing the credibility of an
    informant,    we    previously     have      set   forth   a    non-exhaustive
    compendium of potentially relevant factors.             See United States v.
    White, 
    804 F.3d 132
    , 137 (1st Cir. 2015).              These include:
    (1) the probable veracity and basis of
    knowledge of the informant; (2) whether an
    informant's statements reflect first-hand
    knowledge; (3) whether some or all of the
    informant's     factual    statements     were
    corroborated     wherever    reasonable    and
    practicable; and (4) whether a law enforcement
    officer assessed, from his professional
    standpoint, experience, and expertise, the
    probable significance of the informant's
    information.
    
    Id.
        Viewing the record as a whole, we have little difficulty in
    concluding that the authorities had probable cause to search the
    defendant's vehicle.
    CD's     information    furnished       a   coherent     tale:    the
    defendant was not only the source of the oxycodone and Suboxone
    - 8 -
    that was found in CD's possession but also was an ongoing supplier.
    Crucially,    CD's   account   was    based    upon      first-hand   knowledge
    — knowledge that CD substantiated by referring the troopers to a
    series of text messages to and from the defendant.               The district
    court found that experienced officers reasonably believed that the
    "pinks,"   "greens,"    and    "strips"      that   CD    discussed   with   the
    defendant referred to illicit substances.                  Simpkins, 
    2019 WL 148650
    , at *1 & n.2; see United States v. Dunston, 
    851 F.3d 91
    ,
    96-97 (1st Cir. 2017) (explaining that law enforcement officers
    with experience in drug-trafficking investigations may interpret
    jargon used in that trade); see also United States v. Tiem Trinh,
    
    665 F.3d 1
    , 12-13 (1st Cir. 2011) (noting that court may credit
    the "particular knowledge and experience" of officers in reviewing
    probable cause determinations).           Moreover, in an exchange that
    occurred on the day before CD was found in possession of Suboxone
    strips that he professed to have purchased from the defendant, the
    pair discussed "how many strips" the defendant had available for
    sale and whether adverse weather conditions would affect the
    ability of the two men to meet and "get it over with."
    This evidence, compelling in itself, was bolstered by
    what transpired after CD began to cooperate with the authorities:
    CD contacted the defendant on several occasions, including two
    telephone calls aimed at arranging another meeting.                   These two
    calls not only prompted the defendant to make what amounted to a
    - 9 -
    sales trip to Maine but also corroborated CD's self-described
    relationship with the defendant.            In the first call, CD told the
    defendant that he "need[ed] to get something" but was unable to
    travel to Rhode Island. The defendant responded that he had stored
    "those" in his mother's safe because he was not comfortable keeping
    "them" in his own house — references that the troopers reasonably
    understood to be references to illicit substances.
    To cinch the matter, on the day of the defendant's
    planned journey to Maine, CD requested that the defendant "send
    [him] a price for a total."        This was followed by a text message
    from the defendant, which read:         "Heading out about 2 . . . 3850
    if it ain't short."
    No more was exigible.        At the time the defendant left
    for Maine, the authorities had abundant evidence supporting CD's
    claims to first-hand knowledge of the defendant's drug-trafficking
    activities.      So, too, they had solid reason to believe that the
    defendant would be transporting to Maine illicit substances for
    delivery to a prospective customer (CD).                 And, finally, the
    defendant's behavior before leaving Rhode Island, witnessed at
    first hand by task force members, was consistent with the drug-
    trafficking scenario.         Cf. Illinois v. Gates, 
    462 U.S. 213
    , 243
    n.13 (1983) ("In making a determination of probable cause the
    relevant inquiry is not whether particular conduct is 'innocent'
    or   'guilty,'    but   the   degree   of    suspicion   that   attaches   to
    - 10 -
    particular types of noncriminal acts.").                   It was, therefore,
    objectively reasonable for the authorities to believe that the
    defendant would have contraband in his vehicle when he arrived in
    Maine.
    Although this tableau is redolent of probable cause, the
    defendant strives to snatch victory from the jaws of defeat.                  As
    an initial matter, he challenges CD's reliability and veracity in
    three ways:      he adverts to CD's felony record, the fact that CD
    may have lied to the authorities, and CD's assertion — not borne
    out   at   the   time    of   the   traffic    stop   —    that   the   defendant
    transported contraband in the door panels of his vehicle.
    We    do    not   gainsay   that    all   of    these   points   are
    potentially relevant and often may be factored into the probable
    cause calculus.         For instance, the fact that an informant has a
    felony record belongs in the mix when analyzing the informant's
    reliability.      See United States v. Brown, 
    500 F.3d 48
    , 55 (1st
    Cir. 2007).      But probable cause determinations are typically made
    on the basis of the totality of the evidence, see Almonte-Báez,
    857 F.3d at 31, and a felony record does not preclude a finding of
    probable cause where, as here, the informant's story "reasonably
    appears to be reliable," Brown, 
    500 F.3d at 55
    .              And in all events,
    CD was "known to the police . . . [and] could have been held
    accountable if [the] information proved inaccurate or false."                 
    Id. at 54
    .
    - 11 -
    The defendant's second point seems to refer to CD's
    statement, when initially stopped by the police, that he had been
    at a Connecticut casino.       This statement, even if false — a matter
    on which the record is opaque — preceded both the discovery of
    contraband in CD's possession and CD's decision to cooperate with
    the authorities. Given the substantiated information that CD later
    provided, a meaningless fib about where he had been would do little
    to skew the probable cause calculus in the defendant's favor.
    Finally, the fact that oxycodone was found in the trunk
    of the defendant's car, rather than in the door panels, is simply
    irrelevant.     Although CD told the authorities that the defendant
    used the door panels to conceal drugs, there is nothing in the
    record   indicating      either     that   the   authorities       placed     any
    particular    weight    on   that   statement    or   that   CD   at   any   time
    represented that the defendant used the door panels as a hiding
    place to the exclusion of all other hiding places.
    The defendant next submits that, even if the authorities
    may have harbored suspicions about the presence of contraband when
    they stopped his car, those suspicions were neutralized and any
    semblance of probable cause dispelled when the drug-sniffing dog
    failed to alert.       We do not agree.      A drug-sniffing dog's failure
    to alert is not invariably inimical to the existence of probable
    cause; instead, it is merely one fact to be weighed when assessing
    the totality of the circumstances.            See United States v. Davis,
    - 12 -
    
    430 F.3d 345
    , 365-67 (6th Cir. 2005) (Sutton, J., concurring in
    part and dissenting in part) (collecting cases in support of "a
    near universal recognition that a drug-sniffing dog's failure to
    alert does not necessarily destroy probable cause").   In the case
    at hand, we conclude that the dog's failure to alert did not
    vitiate probable cause, given both the strength of the information
    previously gleaned from CD and the fruits of the investigation up
    to that point.    This conclusion becomes inescapable in light of
    the fact that the dog was not trained to react to prescription
    opiates.2   See 
    id.
    To say more about the vehicle search would be to paint
    the lily.   We hold, without serious question, that the authorities
    had probable cause to search the defendant's car.    Consequently,
    the evidence seized during the vehicle search was admissible, and
    the district court did not err in denying the defendant's motion
    to suppress the fruits of that search.
    B.   The Challenged Statements.
    This brings us to the denial of the defendant's motion
    to suppress his statements to the authorities.   Our review of the
    district court's factfinding is deferential:      "In the Miranda
    2We note that the district court supportably credited
    testimony that, in drug-trafficking investigations, it is the
    standard practice of the Maine State Police to employ drug-sniffing
    dogs during traffic stops even though the anticipated contraband
    is not a substance that the dog was trained to detect.          See
    Simpkins, 
    2019 WL 148650
    , at *3 & n.4.
    - 13 -
    context especially, we are reluctant to disturb the district
    court's suppression decision, such that 'if any reasonable view of
    the evidence supports the denial of a motion to suppress, we will
    affirm the denial.'"        United States v. Melo, 
    954 F.3d 334
    , 339
    (1st Cir. 2020) (quoting United States v. Boskic, 
    545 F.3d 69
    , 77
    (1st Cir. 2008)).
    The baseline rule is that Miranda warnings must be given
    before "a person [is] questioned by law enforcement officers after
    being 'taken into custody or otherwise deprived of his freedom of
    action in any significant way.'"           Stansbury v. California, 
    511 U.S. 318
    , 322 (1994) (per curiam) (quoting Miranda, 
    384 U.S. at 444
    ).   The genesis of this rule is apparent:      Miranda warnings are
    designed "to protect against the extraordinary danger of compelled
    self-incrimination that is inherent in" custodial interrogations.
    United States v. Meléndez, 
    228 F.3d 19
    , 22 (1st Cir. 2000).
    Generally,     statements   obtained   in   violation   of   the   Miranda
    principles are inadmissible.      See United States v. Carpentino, 
    948 F.3d 10
    , 20 (1st Cir. 2020).
    Despite their importance, Miranda rights may be waived.
    A suspect, having been duly advised of his Miranda rights, may
    forgo those rights and voluntarily submit to questioning.          See 
    id.
    Even then, the suspect may bring the questioning to a halt by
    subsequently invoking his right to remain silent. See United States
    v. Thongsophaporn, 
    503 F.3d 51
    , 55-56 (1st Cir. 2007).
    - 14 -
    Against this backdrop, we turn to the defendant's dual
    claims of Miranda error.       We take them one by one.
    1.     The "Fentanyl" Statement.        The defendant first
    challenges the district court's refusal to suppress a statement
    that he made before any Miranda warnings were administered.              Some
    stage-setting is useful.
    We assume arguendo — as the defendant exhorts — that he
    was "in custody" from the moment that the troopers ousted him from
    his vehicle.       On this assumption, the defendant posits that his
    statement about having "[j]ust a little bit of fentanyl," made
    prior   to   his    receipt   of   Miranda   warnings,   should   have   been
    suppressed.       We think not.
    Like many general rules, the Miranda rule admits of some
    exceptions.       One such exception allows the admission of unwarned
    custodial statements given in response to "questions necessary to
    secure [an officer's] own safety or the safety of the public."
    United States v. Fox, 
    393 F.3d 52
    , 60 (1st Cir. 2004) (alteration
    in original) (quoting New York v. Quarles, 
    467 U.S. 649
    , 659
    (1984)), cert. granted, judgment vacated on other grounds, 
    545 U.S. 1125
     (2005). For this exception to apply, the officers'
    questions must relate to an "objectively reasonable need" to
    address an "immediate danger" and cannot be "designed solely to
    elicit testimonial evidence from a suspect."         Quarles, 
    467 U.S. at
    659 & n.8.
    - 15 -
    The district court concluded that the public safety
    exception     applied       to      the    defendant's         "fentanyl"       statement.
    Simpkins, 
    2019 WL 148650
    , at *4. It found that, during the traffic
    stop, the Maine State Police "followed procedures for a high-risk
    arrest" because they knew from reports of an August 2017 "mental
    wellness     check"    that      the      defendant     owned     firearms      and    other
    weapons.3     
    Id.
     at *2 & n.3.              Following that high-risk protocol,
    the   defendant       was     handcuffed         and    patted        down   for     weapons
    immediately upon exiting his vehicle.                    See 
    id. at *2
    .         During the
    pat-down, the defendant was asked if he had "anything on" him.
    
    Id.
           Although he replied that he only had a pocketknife, the
    trooper     conducting        the    pat-down         "noticed"       something      in   the
    defendant's       pocket,     apparently         by    feel,    and    asked,      "[w]hat's
    that?"      
    Id.
        The defendant replied that it was "[j]ust a little
    bit of fentanyl."        
    Id.
    On this record, it is apparent to us — as it was to the
    district court — that the question which elicited the defendant's
    "fentanyl"        statement      arose     out    of    an     objectively      reasonable
    concern     for    officer     safety       rather      than    an    effort    to    obtain
    3Reports of that incident indicated that the defendant had
    discharged a firearm inside his Rhode Island home and had told the
    police that he was being watched by the CIA and the DEA. After
    the defendant was remitted for a psychological evaluation, the
    police removed a number of firearms and edged weapons from his
    residence. Those items were returned to him at some time prior to
    the traffic stop that is at issue here.
    - 16 -
    testimonial evidence.      See Quarles, 
    467 U.S. at
    659 & n.8.              As the
    defendant    conceded    below,        his    personal    history   justified   the
    precaution of a pat-down for weapons. Though open-ended in nature,
    the trooper's question was posed in furtherance of a reasonable
    and briskly conducted check for weapons. What is more, it followed
    closely on the heels of the defendant's admission that he possessed
    a weapon in the form of a pocketknife.                   Under the public safety
    exception, the trooper was not required to make a split-second
    decision     about    whether     to    subordinate       his   immediate   safety
    concerns to the admissibility of any answers he might receive to
    his pat-down-related questions.               We conclude, therefore, that the
    district court, see Simpkins, 
    2019 WL 148650
    , at *4, did not
    clearly err in receiving the defendant's "fentanyl" statement into
    evidence.4    See Quarles, 
    467 U.S. at
    657–58.
    2.      Statements    in        the   Cruiser.     This   leaves   the
    statements made by the defendant in the police cruiser after he
    had received Miranda warnings.               With respect to those statements,
    the district court rebuffed two arguments made by the defendant in
    favor of suppression:           that the defendant had not effectively
    waived his rights and that, even if he had, he later invoked his
    4 The district court noted that there was conflicting evidence
    as to whether the fentanyl was in a baggie or a plastic container,
    see Simpkins, 
    2019 WL 148650
    , at *4 n.6, but made no explicit
    finding in this respect.       The parties make nothing of this
    discrepancy on appeal, and we ascribe no importance to the question
    of how the fentanyl was packaged.
    - 17 -
    right to remain silent.   See Simpkins, 
    2019 WL 148650
    , at *4.        In
    this venue, the defendant renews each of these arguments.5
    The   defendant's   first   contention   —   that   he   never
    effectively waived his Miranda rights — is unconvincing.       Although
    he says that the trooper segued into substantive questioning
    without first obtaining an affirmative Miranda waiver from him,
    the relevant question is not whether the defendant explicitly
    waived his Miranda rights but, rather, whether the defendant's
    conduct, evaluated in light of all the attendant circumstances,
    evinced a knowing and voluntary waiver.      See Carpentino, 948 F.3d
    at 26.   To establish such knowledge, the government must show that
    the defendant understood "both the nature of the right being
    abandoned and the consequences of the decision to abandon" it.
    United States v. Rang, 
    919 F.3d 113
    , 118 (1st Cir. 2019) (quoting
    United States v. Sweeney, 
    887 F.3d 529
    , 536 (1st Cir. 2018)), cert.
    denied, 
    140 S. Ct. 44
     (2019).    And to establish voluntariness, the
    government must show that the defendant's waiver was the "product
    of a free and deliberate choice."      
    Id.
    Miranda rights furnish important protections to those in
    custody, and waivers of Miranda rights are serious business.        Even
    5 In his appellate briefing, the defendant also suggests that
    an "illegal arrest" invalidated the statements that he made while
    in the police cruiser. Because no such argument was ever advanced
    in the district court, it is deemed waived. See United States v.
    Torres, 
    162 F.3d 6
    , 11 (1st Cir. 1998).
    - 18 -
    so, a waiver of Miranda rights need not be explicit.                 See Berghuis
    v. Thompkins, 
    560 U.S. 370
    , 384 (2010).               "Where the prosecution
    shows that a Miranda warning was given and that it was understood
    by the accused, an accused's uncoerced statement establishes an
    implied waiver of the right to remain silent."                
    Id.
    So it is here.       The record makes manifest that the
    trooper gave the defendant an adequate explanation of his Miranda
    rights.        The defendant acknowledged that he understood these
    rights.      And even though the defendant never explicitly affirmed
    that he was willing to answer the trooper's questions, we discern
    no   clear     error   in   the   district     court's     conclusion    that      his
    subsequent       interactions     with   the    officer      displayed      such     a
    willingness.      See Simpkins, 
    2019 WL 148650
    , at *4; see also United
    States    v.    Hinkley,    
    803 F.3d 85
    ,   91   (1st    Cir.    2015)   (citing
    Thompkins, 
    560 U.S. at 384
    ) (holding that defendant "made a valid
    waiver by making uncoerced statements after acknowledging that he
    understood his Miranda rights").
    Finally, we come to the defendant's last contention:
    that he invoked his right to remain silent during the questioning
    but the trooper ran roughshod over his invocation of that right.
    We rest this phase of our analysis on bedrock:                     an accused who
    wishes to invoke his right to remain silent must do so in an
    unambiguous manner.         See Thompkins, 
    560 U.S. at 381
    .
    - 19 -
    Here,    the    defendant   asserts        that   he   unambiguously
    invoked his right to remain silent by telling the trooper more
    than once that he had "nothing to say."               It is, however, common
    ground that "words are like chameleons; they frequently have
    different shades of meaning depending upon the circumstances."
    United States v. Romain, 
    393 F.3d 63
    , 74 (1st Cir. 2004).                    This
    case illustrates the point.       The defendant insists that his use of
    the phrase "nothing to say" was tantamount to stating "I don't
    wish to answer your questions."             By contrast, the government
    insists that the defendant's use of the phrase "nothing to say"
    was simply a convenient means of denying that he possessed any
    guilty knowledge.     The district court resolved this contretemps in
    the government's favor.        It found that the larger context of the
    interview showed that each time the defendant claimed that he had
    "nothing to say," he was in fact "protesting his innocence, not
    asserting his right to remain silent."           Simpkins, 
    2019 WL 148650
    ,
    at *5.
    This finding passes muster.           Viewed most charitably to
    the   defendant,    both   interpretations       of   the    "nothing   to   say"
    language   are    plausible.     And   it   is    settled     beyond    hope   of
    contradiction that "[w]here there are two permissible views of the
    evidence, the factfinder's choice between them cannot be clearly
    erroneous."      Cumpiano v. Banco Santander P.R., 
    902 F.2d 148
    , 152
    - 20 -
    (1st Cir. 1990) (quoting Anderson v. City of Bessemer City, 
    470 U.S. 564
    , 574 (1985)).
    We add only that, during the interview, the defendant
    found       many   ways   in   which   to   disavow   any   knowledge   of   drug-
    trafficking and to imply that the authorities were being misled by
    "bad information."         Seen in this light, it was reasonable for the
    district court to infer that the defendant's repeated use of the
    "nothing to say" phrase, taken in context, was part and parcel of
    this pattern of disavowal.6             The district court's determination
    that there was no unambiguous invocation of the defendant's right
    to remain silent was fully supportable and, thus, there was no
    barrier to continued questioning.
    III. CONCLUSION
    We need go no further. For the reasons elucidated above,
    the judgment of the district court is
    Affirmed.
    6
    A few examples suffice to illustrate the point. For one
    thing, after the trooper encouraged the defendant to "think about
    being honest," the defendant replied:    "Sir, I have nothing to
    say. I didn't do anything." For another thing, when confronted
    with the discovery of the Suboxone strips, the defendant explained
    that: "I forgot all about that" and "[t]here's nothing to say."
    Similarly, when asked to cooperate, the defendant responded: "I
    have nothing to say. I'm not part of a drug conspiracy. You guys
    have the wrong guy."
    - 21 -