The Pentagon has "a lot more" highly classified videos of so-called unidentified aerial phenomena (UAP,) the ex-head of a secretive government program has said.

Luis Elizondo—who once led the U.S. government's Advanced Aerospace Threat Identification Program (AATIP), which was set up to investigate UAPs—helped facilitate the release of three videos showing unidentified aerial phenomena captured by Navy pilots in 2004 and 2015.

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