United States v. Poland , 562 F.3d 35 ( 2009 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 08-1203
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    JONATHAN POLAND,
    Defendant, Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MAINE
    [Hon. D. Brock Hornby, U.S. District Judge]
    Before
    Lynch, Chief Judge,
    Torruella and Boudin, Circuit Judges.
    Judith H. Mizner, Assistant Federal Public Defender, Federal
    Public Defender's Office, for appellant.
    Renée M. Bunker, Assistant United States Attorney, with whom
    Paula D. Silsby, United States Attorney, was on brief for appellee.
    April 2, 2009
    BOUDIN, Circuit Judge.           The issue the parties have
    framed on this appeal is whether, where the district court adjusts
    a prior sentence to account for post-sentence cooperation by the
    defendant, the adjustment may reflect factors other than that
    cooperation.     We sustain the district court's disposition of this
    case but on a narrower ground, deferring until necessary the larger
    issue--which may arise only rarely and implicates a difficult and
    delicate issue of statutory construction.
    The defendant, Jonathan Poland, was eighteen years and
    three months old when he and his seventeen-year old cousin (who was
    just shy of his eighteenth birthday) made and detonated two pipe
    bombs during the Spring of 2004. Poland was indicted and convicted
    of unlawfully possessing an unregistered destructive device, 
    26 U.S.C. §§ 5861
    (d), 5841, 5845(f), 5871 (2006), and use of an
    explosive   to   maliciously   damage   or    destroy   property   used   in
    interstate commerce, 
    18 U.S.C. § 844
    (i) (2006).
    The explosion caused little damage but was close to a
    truck stop office and fuel of various kinds and so was no minor
    prank.   Poland was sentenced to 63 months imprisonment, the three
    months over and above the mandatory minimum sentence of 60 months
    being added because he committed perjury during a suppression
    hearing.     Poland appealed, but later withdrew the appeal and
    cooperated with the government.
    -2-
    The cooperation led to successful government proceedings
    against    Poland's   cousin    but,    the    matter   having     begun    with   a
    juvenile charge, the cousin received a sentence of only three
    months.    After Poland cooperated, the government moved to reduce
    Poland's sentence to 48 months.         Fed. R. Crim. P. 35(b)(1).          Poland
    sought a sentence below 48 months, arguing that all of the ordinary
    statutory factors could be considered afresh, see 
    18 U.S.C. § 3553
    (a),    and   stressing    the     much   longer    sentence    he     received
    compared to his cousin.
    At a hearing on the motion, the district judge asked the
    parties to address the impact of new language in Rule 35(b).                 Under
    precedents    construing      former    versions,      sentencing    courts    may
    consider only the extent of the cooperation given in calculating
    the reduced sentence.          The district court noted that both the
    rule's new language and an advisory committee note suggested that
    on re-sentencing any of the factors identified in 
    18 U.S.C. § 3553
    (a) could now be considered.              The pertinent language of the
    respective changes appears below.
    In the end, the district court held that to so read the
    new rule would work a substantive change and violate the Rules
    Enabling Act,     
    28 U.S.C. § 2072
    (a).         United States v. Poland, 
    533 F. Supp. 2d 199
    , 210 (D. Me. 2008).              To avoid this outcome, the
    district court followed precedent under the old rule and held that
    "the new Rule 35(b) . . . limit[s] the judge, as before the
    -3-
    amendment, to consider only substantial assistance factors in
    support of the amount of a reduction, notwithstanding the amendment
    and the Advisory Committee Note."    
    Id. at 211
    .
    The government's recommendation did not bind the district
    court, which concluded that a reduction to 40 months properly
    accounted for the cooperation provided by Poland.     However, the
    court said that were it free to consider factors other than
    cooperation--in particular "the need to avoid unwarranted sentence
    disparities among defendants with similar records who have been
    found guilty of similar conduct," 
    18 U.S.C. § 3553
    (a)(6)--it would
    reduce Poland's sentence to 30 months.    
    Id. at 213-14
    .
    Poland now appeals, arguing that under the current Rule
    35(b), the judge was free once the motion was made to consider
    factors other than cooperation in reducing the sentence.   We have
    jurisdiction over the appeal, 
    28 U.S.C. § 1291
    ; United States v.
    McAndrews, 
    12 F.3d 273
    , 277-78 (1st Cir. 1993); and, as the issue
    is whether the district court misinterpreted governing law, review
    is de novo and our authority to provide it is clear despite a
    circuit split that might matter if the issue were not purely
    legal.1
    1
    Other circuits, disagreeing with McAndrews, regard the
    appealability of a Rule 35(b) decision as limited by 
    18 U.S.C. § 3742
    , e.g., United States v. Haskins, 
    479 F.3d 955
    , 957 (8th Cir.
    2007) (per curiam), but even if that limitation applied, the claim
    here would be reviewable because--if the district court were
    mistaken--the sentence would reflect a mistake of law and so be
    "imposed in violation of law" under section 3742(a)(1).
    -4-
    The merits of the legal issue, to which we now turn,
    require a precise understanding of how Rule 35(b) evolved.         Before
    the sentencing guidelines, Rule 35(b) permitted a sentencing judge
    to reduce a sentence, more or less without condition, within 120
    days of the sentence or disposition of any appeal.       This open ended
    approach was substantially altered by the Sentencing Reform Act of
    1984, Pub. L. No. 98-473, Title II, 
    98 Stat. 1987
     ("the Reform
    Act"), which adopted a framework for sentencing guidelines that
    aimed    at    restricting   the   discretion   of   judges   in   initial
    sentencing.
    Consonantly, the Reform Act limited the judge's authority
    to alter a final sentence, confining it to three categories, 
    18 U.S.C. § 3582
    (c), of which only one directly concerns us.              It
    reads:
    The   court  may  not   modify  a   term  of
    imprisonment once it has been imposed except
    that--
    (1) in any case--
    ....
    (B) the court may modify     an imposed term of
    imprisonment to the extent   otherwise expressly
    permitted by statute or      by Rule 35 of the
    Federal Rules of Criminal    Procedure . . . .
    The Reform Act also rewrote Rule 35(b) to provide:
    The court, on motion of the Government, may
    within one year after the imposition of a
    sentence, lower a sentence to reflect a
    defendant's subsequent, substantial assistance
    in the investigation or prosecution of another
    person who has committed an offense, in
    -5-
    accordance with the guidelines and policy
    statements issued by the Sentencing Commission
    . . . .
    Reform Act of 1984, § 212(b)(emphasis added).
    Before the Reform Act became effective in 1987, Congress
    again added provisions to both 18 U.S.C. and to Rule 35, which
    furnished the district court authority, in both initial sentencing
    and re-sentencing, to impose sentences below prescribed statutory
    minimums based on a government substantial assistance motion, Anti-
    Drug Abuse Act of 1986, Pub. L. No. 99-570, Title I, §§ 1007, 1009,
    
    100 Stat. 3207
    -08 (1986); but we defer discussion of those changes.
    Given the underscored language of Rule 35(b) as amended
    by the 1984 Reform Act--"to reflect a defendant's subsequent,
    substantial   assistance"--other     circuit    courts    (unsurprisingly)
    concluded that only the defendant's substantial assistance could be
    considered in granting or measuring a Rule 35(b) reduction.           E.g.,
    United States v. Chavarria-Herrara, 
    15 F.3d 1033
    , 1037 (11th Cir.
    1994).     This circuit (and other circuits) similarly construed
    parallel language in the statute that permits a sentence below a
    statutory minimum to reflect substantial assistance. E.g., United
    States v. Ahlers, 
    305 F.3d 54
    , 60 (1st Cir. 2002).
    In 2002, in re-drafting the rules to improve clarity, the
    advisory committee proposed a "stylistic" change to Rule 35(b),
    excising   the   language   that   required    that   a   reduced   sentence
    "reflect" a defendant's substantial assistance.           Fed. R. Crim. P.
    -6-
    35 advisory committee's note, 2002 amendments.        Instead, the 2002
    text provided only that "reducing the sentence accord[] with the
    Sentencing Commission's guidelines and policy statements."2
    In fact, neither before nor after has the Commission
    adopted guidelines or policy statements directed to post-sentence
    reductions based on substantial assistance.       There has been from
    the outset a general guideline provision, not using "reflect"
    language, for guideline departures based on substantial assistance,
    seemingly directed to original sentencing. U.S.S.G. § 5K1.1. This
    circuit, and other courts, read this guideline as implicitly
    incorporating such a requirement.       United States v. Chestna, 
    962 F.2d 103
    , 106-07 (1st Cir.), cert. denied 
    506 U.S. 920
     (1992).
    Despite the 2002 elision, the few circuits to address the
    issue continued to read Rule 35(b) as limiting post-sentence
    reductions to assistance-related factors.      E.g., United States v.
    Dobson, No. 07-15732, 
    2008 WL 4962927
     at *2-3 (11th Cir. Nov. 21,
    2008) (unpublished); United States v. Lindsay, 254 F. App'x. 168,
    169-70 (4th Cir. 2007) (unpublished), cert. denied 
    128 S.Ct. 1688
    (2008).   Precedent   is   limited   because   many   circuits   limit   a
    defendant's ability to appeal decisions on Rule 35(b) motions.
    E.g., Haskins, 
    479 F.3d at 957
    .
    2
    Since 1984, a number changes have been made to Rule 35(b);
    for example, the rule was altered in 2004 to allow consideration fo
    assistance provided after one year after sentencing but only under
    stated conditions. Our discussion of rule changes is limited to
    those material to the present case.
    -7-
    The next step in the chronology was the Supreme Court's
    2005 decision in United States v. Booker, 
    543 U.S. 220
     (2005),
    making the guidelines advisory rather than mandatory to save them
    from constitutional invalidity.        Thereafter, apparently believing
    that       Booker   required   this   change,   the   advisory   committee
    recommended deletion of Rule 35(b)'s then existing requirement that
    a sentence reduction "accord[] with the Sentencing Commission's
    Guidelines and policy statements,"3 and the deletion was adopted
    through the rules process effective December 1, 2007.
    Rule 35(b) now reads in relevant part, and so read when
    the district court considered the government motion in this case,
    as follows:
    Upon the government's motion made within one
    year of sentencing, the court may reduce a
    sentence if the defendant, after sentencing,
    provided    substantial     assistance     in
    investigating or prosecuting another person.
    If this language alone were considered, Poland might well plausibly
    argue that a re-sentencing court could, in granting a substantial
    assistance motion, consider other factors and not just substantial
    assistance in setting the new sentence.
    3
    Memorandum from Booker Subcomm. to Advisory Comm. on Criminal
    Rules,      4     (Mar.      15,     2005),      available       at
    http://www.uscourts.gov/rules/Agenda_Books.htm#criminal. This view
    was contrary to that of the Sentencing Commission staff. Letter
    from Judith W. Sheon, Staff Director, Sentencing Commission, to the
    Standing    Committee     (Feb.    15,    2006),    available    at
    http://www.uscourts.gov/rules/CRRules2005.htm.
    -8-
    This is so even though the language changes that produced
    the present rule resulted from two apparent mistakes. The first is
    the   advisory   committee's   belief     that    deleting   the    limiting
    "reflect" language from Rule 35(b) in 2002 was mere clarification;
    the second is its view that Booker compelled it to delete in 2007
    the remaining reference to the guidelines.           The former error is
    patent,   although   temporarily    masked   by   the   reference    to   the
    guidelines, and stands as caution to restyling projects.
    As for the second change, the revisors' view (although
    shared by the Ninth Circuit, United States v. Hicks, 
    472 F.3d 1167
    (9th Cir. 2007)), quite probably misreads Booker.            The jury trial
    concerns that led to invalidating mandatory guidelines for initial
    sentencing do not bear equally on every regulation of sentencing.
    Booker's Sixth Amendment rationale built on a tension with jury
    trial values insofar as the guidelines mandated an increased
    penalty because of additional conduct (e.g., using a gun, harming
    a victim) found only by the judge rather than the jury.
    Neither the language of Booker nor its rationale appears
    to constrain Congress' power to delimit, whether by guideline or
    otherwise, the conditions on which judges may reduce sentences once
    imposed; Congress can surely decide whether and when any reductions
    are allowed and surely as well who should make the downward
    adjustment and on what basis.       Cf.   United States v. Fanfan, No.
    08-2062, 
    2009 WL 531281
    , at        *4, ___ F.3d ___ (1st Cir. Mar. 4,
    -9-
    2009) (constraining downward adjustment under 
    18 U.S.C. § 3582
    (c)
    based on revision of crack cocaine guideline).
    But despite faulty premises, the 2002 and 2007 changes in
    Rule 35(b) were adopted through the rulemaking process, and laws
    based on mistaken premises, whether legal or factual, are not
    uncommon and are commonly given effect.           Cf. Pernell v. Southall
    Realty, 
    416 U.S. 363
     (1974). So such rule changes arguably control
    unless barred by the Rules Enabling Act, which famously authorizes
    "procedural" rules and provides that "[s]uch rules shall not
    abridge, enlarge or modify any substantive right."              
    28 U.S.C. § 2072
    (b).
    The district court said that stripping out Congress'
    "reflect" language from Rule 35(b) and the limiting reference to
    the guidelines would comprise such a "substantive" change barred by
    the Rules Enabling Act; thus, the judge read back into the rule the
    "requirement   that    the   reduction        'reflect'   the   'subsequent
    substantial assistance.'"     Poland, 
    533 F. Supp. 2d at 211
    .         This,
    the judge said, brought back into play earlier case law almost
    uniformly reading such language to exclude non-assistance factors
    in determining such a reduction.
    The Rules Enabling Act's key language is opaque and its
    few   constructions   have   occurred    in    quite   different   contexts.
    Burlington N. R.R. Co. v. Woods, 
    480 U.S. 1
     (1987); Sibbach v.
    Wilson, 
    312 U.S. 1
     (1941).     Among other difficulties, the statute
    -10-
    brings into play both an enduring conundrum--the line between
    substance and procedure--and the puzzle of the statute's reference
    to "rights."4     The rules process is among the most important
    endeavors in the judiciary; any constraining construction of the
    statute could have far reaching implications.
    The sentencing question in our case arises out of a fact
    pattern that may not be common: usually the only new fact on a Rule
    35(b) motion will be the substantial assistance furnished since
    other factors will have already been fully considered; it is the
    peculiarity here of the belated sentence for Poland's cousin that
    created a second argument for a reduction after the original
    sentence.    So we choose to affirm the district court's outcome on
    a narrower ground and defer for now any encounter with the Rules
    Enabling Act.
    Poland's   reduced   sentence   was   below   the   statutory
    minimum of sixty months.    
    18 U.S.C. § 844
    (i).     Had the substantial
    assistance reduction Poland received occurred at the time of his
    initial sentencing, it would have been governed by 
    18 U.S.C. § 4
    Examples of the vast literature on the topic are Steven B.
    Burbank, The Rules Enabling Act of 1934, 130 U. Pa L. Rev. 1015
    (1982); John Hart Ely, The Irrepressible Myth of Erie, 
    87 Harv. L. Rev. 693
     (1974); Leslie M. Kelleher, Taking "Substantive Rights"
    (in the Rules Enabling Act) More Seriously, 
    74 Notre Dame L. Rev. 47
     (1998); Martin H. Redish & Dennis Murashko, The Rules Enabling
    Act and the Procedural-Substantive Tension: A Lesson in Statutory
    Interpretation, 
    93 Minn. L. Rev. 26
     (2008).
    -11-
    3553(e), which was added to the Reform Act by the previously cited
    Anti-Drug Abuse Act of 1986; the provision states (emphasis added):
    Upon motion of the Government, the court shall
    have the authority to impose a sentence below
    a level established by statute as a minimum
    sentence so as to reflect a defendant's
    substantial assistance in the investigation or
    prosecution   of   another  person   who   has
    committed an offense. Such sentence shall be
    imposed in accordance with the guidelines and
    policy statements issued by the Sentencing
    Commission pursuant to section 994 of title
    28, United States Code.
    Rule 35(b) similarly provides, in language also added in
    1986 by the same statute and now in subsection (4), that on the
    government's motion based on substantial assistance, "the court may
    reduce   the   sentence   to    a   level   below   the   minimum   sentence
    established    by   statute."       Traditionally,    the   reductions   for
    substantial assistance below the statutory minimum--whether at
    initial sentencing or on sentence reduction--have been governed by
    the same standards, see, e.g., United States v. Doe, 
    940 F.2d 199
    ,
    203 n.7 (7th Cir.), cert. denied 
    502 U.S. 869
     (1992), as Congress
    doubtless intended.
    Courts would surely have reached this result in re-
    sentencing cases, even if Congress had not echoed the "reflects"
    language in the Reform Act's version of Rule 35(b).                 Had that
    phrase been omitted, the courts would still have construed the two
    enactments in para materia, there being no obvious reason why
    Congress would want the reflects limitation to apply in one context
    -12-
    but not in the other.    Cf. In re Sealed Case No. 97-3112, 
    181 F.3d 128
    , 133 (D.C. Cir. 1999) (noting Rule 35(b), § 3553(e), and §
    5K1.1 are to be read "in pari materia").       For mandatory minimums,
    but perhaps only for mandatory minimums, the 2002 deletion of the
    "reflects" language in the rule may be merely "stylistic."
    To put the matter differently, we hold that for re-
    sentence adjustments that go below the statutory mandatory minimum,
    Rule 35(b) must be read in conformity with 
    18 U.S.C. § 3553
    (e).
    Congress has never changed the statutory rule that such reductions
    must reflect only the assistance provided.       Nor is there anything
    in the "legislative history" of changes to Rule 35(b) that reflects
    any desire to create a discrepancy for post-sentence adjustments
    below the mandatory minimum.
    Poland's    statutory   mandatory   minimum   sentence   is   60
    months.   The district court was entitled to reduce the sentence to
    reflect the assistance provided, which it calculated to justify a
    sentence of 40 months.       It could not, as we read Rule 35(b),
    provide a greater reduction below the mandatory minimum for any
    other reason.   This disposes of Poland's reliance on comparability
    with his cousin, any alternative interpretation of U.S.S.G. § 5K1.1
    or otherwise pertinent sentencing factors prescribed by Congress.
    Affirmed.
    -Concurring Opinion Follows-
    -13-
    TORRUELLA,   Circuit     Judge    (Concurring).     I     join   the
    result, but write separately to express my views on our current
    sentencing regime as it affected this case.
    As set forth below, all of the parties, including the
    district   court,   agreed   that   the     sentencing   disparity    between
    Poland's sentence and his cousin's juvenile sentence supported a
    sentencing reduction to lessen that disparity.           The plain text of
    Federal Rule of Criminal Procedure 35(b), after amendments made to
    it in 2002 and 2007, permitted such a reduction.           The parties and
    the district court, however, got caught up in the minutiae of
    whether those amendments, the latter inspired by Booker, allowed
    the district court to provide such a reduction.           Although I agree
    with the ultimate result given the existing state of the law, and
    thus join the majority's affirmance, I find the events that led to
    that result troubling.
    In order to understand my concerns, I will provide some
    background that was not essential to the majority opinion but is
    relevant here.      After Poland cooperated, the government filed a
    motion to reduce Poland's sentence under Rule 35(b), recommending
    a 48-month sentence.    Poland filed a responsive memorandum, urging
    the district court to look beyond the factors outlined in U.S.S.G.
    § 5k1.1 and consider all factors under 
    18 U.S.C. § 3553
    (a).            Poland
    specifically asked the court to consider the disparity between
    Poland's sentence (63 months) and his cousin's (3 months).
    -14-
    A       hearing   on   the   government's     motion    was   held    on
    January 9, 2008. The district court prefaced the hearing by asking
    the parties to address the recent 2007 amendments to Rule 35(b),
    which had occurred a month earlier.               The government, going first,
    explained that Poland's cooperation alone "is clearly worthy of
    more than what we have asked for," but made its recommendation in
    order   to   reflect       Poland's       delay   in   cooperating    until    after
    sentencing and his obstruction of justice prior to his decision to
    cooperate.           The government then emphasized that Poland's cousin
    "received        a    substantially,      substantially    less     sentence    than
    Jonathan did," that "the juvenile sentence . . . is not even on the
    radar screen," and that "the disparity between the two sentences is
    difficult for me to justify at this point," given that "the
    juvenile was more culpable and did more."
    When asked by the district court whether the court was
    permitted to consider "the 3553(a) factors," and, in particular,
    the   sentencing         disparity   in    reducing    Poland's     sentence,     the
    government responded:
    I do, I do. I -- at your request I read the
    rule, I read the notation, the commentary to
    the rule, and it was very clear -- I had a
    discussion with [Poland's counsel] about it,
    it was clear to both of us -- that, like a
    typical sentencing, not a re-sentencing or
    situation such as this, if you were -- you are
    essentially to treat the Rule 35 motion in the
    light you would a -- if you were re-sentencing
    Mr. Poland today because you may look beyond
    the guidelines at 3553(a) factors.     And the
    language of the statute used to be simply that
    -15-
    you looked at the guidelines, which of course
    the Court knows is now advisory. So I read
    that to mean that the book is open in terms of
    the factors that you may consider both in the
    advisory guidelines as well as 3553(a) factors
    in coming to a conclusion as to what
    percentage of a departure should be imposed if
    a departure should be imposed.
    So I do believe you can follow 3553(a).
    I would encourage the Court to do so.        I
    certainly   did    so   in   general    terms,
    theoretically, in coming up with the reasons
    why a Rule 35 motion was appropriate. But I
    do think that Mr. Poland has a number of
    indicia in his case that speak directly to
    many of the factors in 3553(a), such as the
    comparison of his behavior to that of a
    juvenile and the disparity between their
    sentences.
    When asked, the government clarified that its recommended sentence
    of 48-months did not reflect the disparity between Poland and his
    cousin's sentences, but admitted that "I don't disagree with
    anything that [Poland's counsel] said in his response."                  The
    district court asked if the government's "agreement that the
    [3553(a)] factors can govern reflect your office's consideration of
    the significance of this change?"           The government responded that
    the "appellate division" had not addressed the issue.
    After the hearing, the government attorney consulted with
    the   U.S.    Attorney's   Office    to   determine    its   position.    On
    January 10, 2008, the government filed a memorandum clarifying that
    position.     In the memorandum the government stated that "while the
    Court   may     consider   3553(a)   factors    in    reducing   Defendant's
    sentence, it is the Government's position that it may do so only in
    -16-
    determining   to   what   extent   to   reduce   the   sentence   based   on
    Defendant's cooperation."      Foreshadowing the majority's reasoning,
    the Government then stated that "the extent of any reduction is
    strictly limited by 
    18 U.S.C. § 3553
    (e) in this case as a result of
    the mandatory minimum."
    With this background in mind, I stress my discomfort with
    a sentencing regime (including its mandatory minimum sentences) in
    which the good faith efforts of the parties and the district court
    to do the right thing and reflect the disparity between Poland's
    sentence and his cousin's sentence, were essentially derailed by
    the complexity and uncertainty of the existing state of the law.
    The district judge, in fact, stated outright that "[i]f [it] were
    able to consider these additional § 3553(a) factors, [it] would
    reduce the defendant's sentence to thirty months."            United States
    v. Poland, 
    533 F. Supp. 2d 199
    , 214 (D. Me. 2008).            Instead, the
    district court was reduced to divining the propriety of several
    changes to Rule 35(b) in light of Booker, ultimately expressing
    some concern that a unconstrained interpretation of Rule 35(b) may
    violate the Rules Enabling Act, an Act which, as the sentencing
    court admitted, has never in its history caused the Supreme Court
    to invalidate a rule.     See 
    id.
     at 210-11 (citing sources).
    I   also   express   disappointment    with   the    government's
    change of position.       That said, the government did go to great
    pains to point out that the disparity between Poland's sentence and
    -17-
    his cousin's sentence was "difficult . . . to justify at this
    point" and expressed great sympathy with Poland's position that the
    sentencing disparity should be considered.               It is troubling that
    such concerns had to fall by the way side.
    Taken together, the district court's and the government's
    actions are indicative of a sentencing regime (in particular, the
    mandatory minimum in this case) containing little flexibility.                 In
    the real life scenario of sentencing, such a regime makes little
    sense because it takes away much of the discretion from where it
    should be, those on the front lines of the criminal justice system.
    Our   sentencing     regime    reflects     the   work   of   persons   with   a
    background of much theory and little practice in the art of
    sentencing.    I do not begrudge the district court for its care in
    attempting to reach the right conclusion.            The issue before us is
    difficult, and given the existing state of law, I am forced to
    agree   with   the   result.      But   I   am    also   obliged   to   vent   my
    frustration with the situation in which we find ourselves mired, a
    sentencing regime plagued with uncertainty and rigidity.
    -18-