Guantanamo Bay
More than 780 people have been detained at Guantanamo Bay without trial since 2002 — held in a legal limbo the government designed specifically to avoid judicial review, with a facility every president since Bush has promised to close and none has.
The short version
- Guantanamo Bay was selected as a detention site after September 11 explicitly because the administration believed the U.S. naval base in Cuba lay outside the jurisdiction of U.S. federal courts — an assumption the Supreme Court rejected in Rasul v. Bush (2004) and Boumediene v. Bush (2008).
- Of the 779 people detained, the majority were never charged with a crime; many were released after years of detention when the government determined it had insufficient evidence to charge them. Approximately 30 detainees remain as of early 2026.
- The Senate Intelligence Committee's torture report documented that CIA black sites — not Guantanamo itself, but part of the same detention system — used interrogation techniques including waterboarding, rectal feeding, sleep deprivation of up to 180 hours, and confinement in small boxes that constituted torture under both U.S. and international law.
- The detention of individuals the government considers too dangerous to release but too legally compromised to prosecute — because the evidence against them was obtained through torture — has created a category of permanent imprisonment without conviction that has no precedent in American constitutional history.
What it is
The United States Naval Station Guantanamo Bay in Cuba has existed since 1898, when the U.S. acquired it as a coaling station following the Spanish-American War. A 1903 lease agreement with Cuba — signed under duress, as Cuba had just emerged from American military occupation — established the United States' indefinite control of the base in exchange for an annual payment of 2,000 gold coins (now $4,085). Fidel Castro, after coming to power in 1959, refused to cash the lease payments and demanded the United States return the territory; the base has remained under American control regardless. The Cuban Missile Crisis brought the base to its closest approach to conflict. For the following four decades it was a quiet naval installation, briefly used in the 1990s to house Haitian and Cuban migrants interdicted at sea. Its transformation into a detention facility was a decision made in the weeks immediately following September 11, 2001, driven by a specific legal theory.
The Bush administration's legal rationale for Guantanamo was constructed by John Yoo and other lawyers in the Office of Legal Counsel and the Department of Defense. The theory held that the naval base, while under American control, lay outside the sovereign territory of the United States and therefore outside the jurisdiction of U.S. federal courts — meaning detainees could not petition for habeas corpus, the constitutional right to challenge the lawfulness of one's imprisonment before a court. The designation 'unlawful enemy combatant' was invented to place detainees outside both the protections of the Geneva Conventions (which apply to prisoners of war) and the protections of U.S. criminal law (which apply to criminal defendants). The intended result was a detention category with no rights — no right to challenge detention, no right to counsel, no right to know the evidence against them, no right to trial. The Supreme Court dismantled this framework in three successive decisions: Rasul v. Bush (2004) (courts have jurisdiction over Guantanamo), Hamdi v. Rumsfeld (2004) (citizens designated enemy combatants retain due process rights), and Boumediene v. Bush (2008) (non-citizen detainees have habeas corpus rights). Congress responded to the first two decisions by legislating to strip court jurisdiction, leading to Boumediene, which struck down those strips as unconstitutional.
The interrogation practices used on Guantanamo detainees and at related CIA black sites were authorized through a chain of memoranda that legal scholars have described as designed to reach predetermined conclusions. The Convention Against Torture, to which the United States is a party, prohibits torture and cruel, inhuman, or degrading treatment absolutely — with no national security exception. The Army Field Manual on interrogation prohibited the techniques subsequently used at Guantanamo and CIA sites. The OLC torture memos redefine torture so narrowly — as conduct specifically intended to cause organ failure, death, or permanent impairment of mental function — that waterboarding, sleep deprivation, stress positions, and confinement in small boxes did not qualify. The memos also argued that the president's commander-in-chief authority superseded the statutory prohibition on torture, and that good-faith reliance on OLC legal opinions would provide a defense against prosecution. The Senate Intelligence Committee's 2014 report found that the program was more brutal than the CIA had reported to its overseers and that it produced no unique intelligence that was not obtainable through other means — conclusions the CIA disputed in a formal rebuttal.
The military commission system established to try Guantanamo detainees has moved at a pace that, after more than two decades, has produced a handful of completed proceedings and left the most significant cases unresolved. The trial of Khalid Sheikh Mohammed and four co-defendants accused of planning the September 11 attacks — arguably the most important terrorism prosecution in American history — has been entangled in pretrial litigation since charges were referred in 2008. The primary legal complexity is the torture problem: evidence obtained through the enhanced interrogation program is presumptively inadmissible, the defendants were extensively tortured, and the government has been unable to separate what it knew before the torture from what it learned through it. An Article III federal court might have tried and convicted these defendants years ago — federal courts have convicted hundreds of terrorism defendants since 2001 — but the decision to use military commissions in a forum designed to avoid normal evidentiary rules has produced a system in which the most consequential defendants may never be tried.
Why it matters
The 'too dangerous to release, too tainted to prosecute' problem that Guantanamo has created is not a temporary procedural difficulty — it is the logical consequence of a detention system built on evidence obtained through torture. Several dozen detainees remain at Guantanamo not because the government has evidence sufficient to convict them in any recognized legal proceeding, but because the government believes they would pose a threat if released and cannot try them because the evidence was obtained in ways that no court would accept. This is a novel category of American imprisonment: indefinite detention not as a punishment for a crime, not as a temporary wartime measure pending cessation of hostilities, but as a permanent administrative status with no defined exit. The Periodic Review Board process that was established to review individual detainees' status has cleared many for transfer, but their transfer has been blocked by congressional restrictions on moving detainees to the United States or to third countries without extensive certification requirements.
Every president since George W. Bush has publicly committed to closing Guantanamo and failed. Obama signed an executive order in his first week in office directing the closure within one year. Congress responded by prohibiting the use of federal funds to transfer detainees to the United States, building an effective legislative wall against any plan that required U.S. detention facilities. By the end of Obama's two terms, 197 detainees had been transferred out, but 41 remained. Trump reversed course, issuing an executive order in 2018 to keep Guantanamo open indefinitely and directing the military to consider sending new detainees there — though no new detainees were sent. Biden resumed transfers, reducing the population to approximately 30, but the closure remained incomplete when his term ended. The pattern reveals a consistent dynamic: the executive branch has found closure politically difficult, and Congress has found it politically convenient to prevent closure while decrying the facility's cost and legal problems.
Guantanamo costs the United States approximately $540 million annually to operate — roughly $18 million per detainee per year, at its current population. A federal maximum-security prison costs approximately $40,000 per prisoner per year. The cost differential reflects the remote location, specialized legal infrastructure, and political constraints that prevent consolidation or closure. The Government Accountability Office has repeatedly documented that closure would produce significant savings, that the security concerns raised against transferring detainees to U.S. facilities are not supported by evidence from the hundreds of terrorism defendants already held in U.S. federal prisons without incident, and that the legal and reputational costs of continued operation are substantial. The facility's continued operation has been cited by U.S. adversaries in human rights contexts, used by terrorist organizations in recruitment materials, and complicated U.S. diplomatic relationships with allies whose citizens were detained there.
The constitutional legacy of the Guantanamo detention system extends beyond the facility itself. The legal doctrines constructed to justify it — executive power to create detention categories outside judicial review, the 'enemy combatant' designation, the argument that national security emergencies justify setting aside constitutional protections — remain available to future administrations. The Supreme Court's Boumediene decision established habeas corpus rights for Guantanamo detainees but did not resolve the broader question of whether the executive can create offshore detention facilities specifically to avoid constitutional constraints. The American Civil Liberties Union has documented that the habeas rights Boumediene established have been practically gutted by subsequent lower court decisions that have applied extreme deference to government evidence in habeas proceedings, resulting in almost no successful habeas petitions since 2010. The legal architecture of Guantanamo — designed to be beyond law — has proven remarkably durable even after the Supreme Court ruled that it was not.