In an Aug. 4, 1955 photo provided by the CIA, the prototype U-2 spy plane is tested at what became known at Area 51 in Nevada. The CIA is acknowledging in the clearest terms yet the existence of Area 51, the top-secret Cold War test site that has been the subject of conspiracy theories for decades. (AP Photo/CIA)

Disclosure Of Area 51 May Reflect Shift In Federal Policy

The CIA has finally declassified documents on the infamous Area 51.