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UFOs In US AirSpace: Hard Evidence, Edition 2 - Expanded: Project Blue Book - US Air Force UFO Case Files - Kindle edition by Chace, John Scott. Politics & Social Sciences Kindle eBooks @ Amazon.com.
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The Pentagon Released U.F.O. Videos. Don't Hold Your Breath for a Breakthrough. - The New York Times
Japan's military pilots have never encountered UFOs, defence minister says | South China Morning Post
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