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` Cite as: 587 U. S. ____ (2019)
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` Statement of BREYER, J.
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`SUPREME COURT OF THE UNITED STATES
`MOATH HAMZA AHMED AL-ALWI v. DONALD J.
`TRUMP, PRESIDENT OF THE
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`UNITED STATES, ET AL.
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`ON PETITION FOR WRIT OF CERTIORARI TO THE UNITED
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`STATES COURT OF APPEALS FOR THE DISTRICT OF
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`COLUMBIA CIRCUIT
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`No. 18–740 Decided June 10, 2019
`The petition for a writ of certiorari is denied. JUSTICE
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`KAVANAUGH took no part in the consideration or decision
`of this petition.
`Statement of JUSTICE BREYER respecting the denial of
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`certiorari.
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`In the immediate aftermath of the terrorist attacks of
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`September 11, 2001, Congress passed the Authorization
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`for Use of Military Force (AUMF), 115 Stat. 224. The
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`AUMF states that the President may “use all necessary
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`and appropriate force against those nations, organizations,
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`or persons he determines planned, authorized, committed,
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`or aided” those attacks. §2(a), ibid.
`In Hamdi v.
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`Rumsfeld, 542 U. S. 507 (2004), a majority of this Court
`understood the AUMF to permit the President to detain
`certain enemy combatants for the duration of the relevant
`conflict. Id., at 517–518 (plurality opinion); id., at 587
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`(THOMAS, J., dissenting).
`Justice O’Connor’s plurality opinion cautioned that “[i]f
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`the practical circumstances” of that conflict became “en-
`tirely unlike those of the conflicts that informed the devel-
`opment of the law of war,” the Court’s “understanding” of
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`what the AUMF authorized “may unravel.” Id., at 521.
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`Indeed, in light of the “unconventional nature” of the “war
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`on terror,” there was a “substantial prospect” that deten-
`tion for the “duration of the relevant conflict” could
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`2
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` AL-ALWI v. TRUMP
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` Statement of BREYER, J.
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` amount to “perpetual detention.” Id., at 519–521. But as
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`this was “not the situation we face[d] as of th[at] date,” the
`plurality reserved the question whether the AUMF or the
`Constitution would permit such a result. Id., at 517–518.
`In my judgment, it is past time to confront the difficult
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`question left open by Hamdi. See Boumediene v. Bush,
`553 U. S. 723, 797–798 (2008) (“Because our Nation’s past
`military conflicts have been of limited duration, it has
`been possible to leave the outer boundaries of war powers
`undefined. If, as some fear, terrorism continues to pose
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`dangerous threats to us for years to come, the Court might
`not have this luxury”); Hussain v. Obama, 572 U. S. 1079
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`(2014) (statement of BREYER, J., respecting denial of
`certiorari).
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`Some 17 years have elapsed since petitioner Moath
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`Hamza Ahmed al-Alwi, a Yemeni national, was first held
`at the United States Naval Base at Guantanamo Bay,
`Cuba.
`In the decision below, the District of Columbia
`Circuit agreed with the Government that it may continue
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`to detain him so long as “armed hostilities between United
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`States forces and [the Taliban and al-Qaeda] persist.” 901
`F. 3d 294, 298–299 (2018). The Government represents
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`that such hostilities are ongoing, but does not state that
`any end is in sight. Brief in Opposition 4–5. As a conse-
`quence, al-Alwi faces the real prospect that he will spend
`the rest of his life in detention based on his status as an
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`enemy combatant a generation ago, even though today’s
`conflict may differ substantially from the one Congress
`anticipated when it passed the AUMF, as well as those
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`“conflicts that informed the development of the law of
`war.” Hamdi, 542 U. S., at 521 (plurality opinion).
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`“The denial of a writ of certiorari imports no expression of
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`opinion upon the merits of the case.” United States v.
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`Carver, 260 U. S. 482, 490 (1923). I would, in an appropri-
`ate case, grant certiorari to address whether, in light of the
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`duration and other aspects of the relevant conflict, Con-
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`Cite as: 587 U. S. ____ (2019)
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` Statement of BREYER, J.
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`gress has authorized and the Constitution permits contin-
`ued detention.
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`3
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