Former intelligence officer claims U.S. military has alien spacecraft in its custody.
David Charles Grusch says the findings have been kept secret for decades. He left his government post in April to be able to speak freely and push for the authorities to be held accountable. US space agency Nasa says in a statement that it has no credible evidence of UFOs from other planets."The phenomenon of non-human intelligence is real. We are not alone," said Jonathan Grey, UFO analysis at the National Air and Space Intelligence Center (NASIC)