Don't go there: A warning sign marks the boundary of Area 51 in Nevada.
Dan Callister/Getty Images
August 16, 2013 A declassified CIA report about the U-2 spy plane program lifts some of the veil of secrecy about a part of Nevada that fascinates sci-fi fans. For instance, the men who wanted to turn it into a top-secret site almost died the first time they went there. That's among five things interesting details.
The CIA has put Area 51 on the map.
National Security Archive
August 16, 2013 A newly declassified document even includes a map. But there's no word about space aliens being stored there. Also, while UFOs are mentioned, they're said to have been high-flying U2 spy planes.
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