Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien bodies.
Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.
Space.com on MSNOpinion
Trump says US government will declassify its UFO files. Will we actually learn anything this time, or is this a distraction?
President Donald Trump has issued a statement that he will instruct the federal government to begin releasing all of its ...
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