Article from the website express.co.uk.
Most Americans assumed he was joking.
"I come in peace," said President Barack Obama in March, 2012, after landing at Roswell, New Mexico, the infamous site of an alleged extraterrestrial spaceship crash landing.
Asked about the alien bodies reportedly recovered from the wreckage he added: "If I told you I would have to kill you... we're going to keep our secrets here."
But a controversial new book The Presidents And UFOs: A Secret History From FDR To Obama claims that a number of US leaders have known of evidence proving that aliens have visited Earth leaving spaceship debris, the occasional alien corpse and thousands of UFO sightings.
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