3 U.S. military vets allege UFO cover-up

Three military veterans allege, during a Congressional hearing, that the government is covering up evidence of UFOs. The veterans said they have encountered Unidentified Aerial Phenomena (UAP) performing inexplicable maneuvers that couldn't be piloted by humans. Pentagon officials say they are studying unidentified objects, but deny there has been any evidence of extraterrestrial life, or evidence of objects that defy physics.