On January 22, 2009, US President Barack Obama, in one of his first official acts, issued an executive order requiring the closure of the controversial detention facilities at Guantanamo Bay, Cuba and halting the equally contentious military commission proceedings. The order, an abrupt shift in US policy, requires a mandatory review of the factual and legal basis for continued detention of the remaining detainees with the stated goal of determining their final disposition. Dependent upon the review’s findings, possibilities for the detainees include release, transfer, prosecution in a US federal court, or, if necessary, some other form of disposition.