By Denise Chow, Staff Writer   |   October 04, 2013 07:47am ET

A Secret History

Credit: U.S. Air Force

Government and military secrets can range from terrifying to amusing to downright absurd, but most are nothing short of intriguing. From a secret U.S. Air Force project to build a supersonic flying saucer to a now-famous World War II-era research program that produced the first atomic bombs, here are seven declassified military or CIA secrets.


Project 1794 Flying Saucer

Project 1794

Credit: National Archives

In late 2012, the U.S. Air Force declassified a trove of documents, including records of a secret program to build a flying saucer-type aircraft designed to shoot down Soviet bombers. The ambitious program, called Project 1794, was initiated in the 1950s, and a team of engineers was tasked with building a disc-shape vehicle capable of traveling at supersonic speeds at high altitudes.

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