How the Pentagon Started Taking U.F.O.s Seriously

For decades, flying saucers were a punch line. Then the U.S. government got over the taboo.

By Gideon Lewis-Kraus

On May 9, 2001, Steven M. Greer took the lectern at the National Press Club, in Washington, D.C., in pursuit of the truth about unidentified flying objects. Greer, an emergency-room physician in Virginia and an outspoken ufologist, believed that the government had long withheld from the American people its familiarity with alien visitations.

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