The Obama administration has tracked down and killed Osama bin Laden, Anwar al-Awlaki and other al Qaeda leaders, but Republicans and some Democrats in Congress remain intent on challenging the administration's policies for handling captured terror suspects.
Those lawmakers insist that captured terror suspects should be held at the US prison at Guantanamo Bay, Cuba, and prosecuted by military tribunal. They have repeatedly rejected President Barack Obama's push to close Guantanamo and oppose the administration's effort to detain suspects at facilities in the United States and try them in federal courts.
The dispute could jeopardize the latest defense bill in Congress. The administration has accepted restrictions on its detention policy in previous measures, but now officials are pushing back.