His organization seeks to get Congress to "hold open, secrecy-free hearings on UFO/extraterrestrial presence on and around Earth," which Greer believes is irrefutable, having ostensibly experienced contact firsthand and recorded similar testimony by numerous members of the U.S. Armed Forces and private industry. In response to Hawking's comments, Greer told AOL News he found it "unfortunate that Stephen Hawking has added his voice to a growing chorus of xenophobia and fear regarding what he terms 'aliens.'" Greer went on to say: