Not to go off on a crazy tangent, but look up the 2004 Nimitz incident. There's a great history channel Doc series on it. Dozens of fighter pilots, crew members aboard the carrier, radar crew, etc, ended up chasing down some "Unidentified Aerial Vehicles." Multiple radars caught the one of the aircraft going 30x the speed of sound when Commander David Fravor was chasing it, and it actively blocked their radar. At one point one of the aircraft (about 40 feet long and shaped like a tic-tac) dropped from 28,000 feet down into the water in 0.78 seconds and then sonar caught it traveling about 100 mph underwater.
The Navy and Department of Defense have not only declassified the footage taken from the fighter jets, but they've been warning their pilots to look out for mid-air collisions due to the increase in these objects.
It's becoming a national security concern since these aircraft have crazy advanced capabilities, are jamming our jets' radars, and are flying in our secure airspace while we don't know what they are.
I had a UFO encounter in June of 2010 (I saw a big black triangle with an orange light on each end of the triangle rise up out of the ocean) and I've been very hesitant until this year to make any claims about it being aliens. I thought it was a government craft. But I'm starting to open my mind up just because the tic-tac UFO was traveling at speeds that result in G-Forces that no human (or even biological lifeform) could survive. If anything living traveled at thousands of mpg they've turn into mush immediately. I think they're either drones or being piloted by A.I. of some sort.
Luis Elizondo is a former employee of the Office of the Under Secretary of Defense for Intelligence and a former U.S. Army Counterintelligence Special Agent. He was a hardcore special ops guy too.