The program was called the Advanced Aerospace Threat Identification Program and was publicly acknowledged for the first time a few days ago in an extensive report by The New York Times. It operated for five years on a budget of up to $22 million within the US Defense Department from 2007 to 2012. Much of what the secret investigators studied were audio and video recordings of encounters between military pilots and unknown objects, so this wasn't about searching the cosmos for water on distant planets; the program was devoted to finding evidence of aliens already visiting our own blue marble.
"I will tell you unequivocally that through the observations, scientific methodologies that were applied to look at this phenomena, that these aircraft -- we'll call them aircraft -- are displaying characteristics that are not within the US inventory, nor in any foreign inventory that we are aware of," Elizondo told CNN.
Elizondo resigned from the Department of Defense in October 2017, frustrated that the government was not spending more time and effort searching for signs of alien life. He recently joined a private startup to continue studying unknown objects, as the DOD has moved onto "higher priority issues." When you watch the video of him talking, he sounds way less crazy than you'd think.
So maybe there's still hope for Sasquatch or, better yet, Lizard Man?