A whistleblower claims the US has alien vehicles. But where’s the proof?

A 1952 picture, taken by a US coastguard, shows four unidentified flying objects as bright lights in the sky. Photograph: Popperfoto

Some prominent experts have expressed growing skepticism over whether the US is harboring UFOs, as the government whistleblower who made the extraordinary claims has gone on to suggest the US had also recovered alien bodies.

David Grusch, a former intelligence official who led analysis of unexplained anomalous phenomena (UAP) within a US Department of Defense agency, caused headlines around the world with his assertion that the US had been collecting non-human craft for “decades”.