Four Guantanamo prisoners released, returned to Afghanistan

The entrance to Camp 5 and Camp 6 at the U.S. military's Guantanamo Bay detention center at Guantanamo Bay Naval Base, Cuba, in a photograph taken earlier this year.
The entrance to Camp 5 and Camp 6 at the U.S. military's Guantanamo Bay detention center at Guantanamo Bay Naval Base, Cuba, in a photograph taken earlier this year.