The Pentagon's only maximum security prison, at the U.S. Army's Fort Leavenworth in Kansas, is one of the facilities being considered for placement of Guantanamo prisoners deemed too dangerous to release.
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People wait for a train in the foreground as members of a police forensics team take part in an investigation next to a Thalys train on the platform at Arras train station, northern France on Saturday.
Dawn at the now closed Camp X-Ray, which was used as the first detention facility for al-Qaida and Taliban militants who were captured after the Sept. 11 attacks at Guantanamo Bay Naval Base, Cuba.
President Obama meets Cuban President Raul Castro at the Summit of the Americas in Panama City on April 11. The White House says it wants to remove Cuba from its list of state sponsors of terrorism.
Pablo Martinez Monsivais/AP