Source: CBS News - 60 minutesImagine a technology that can do 6-to-700 g-forces, that can fly at 13,000 miles an hour, that can evade radar and that can fly through air and water and possibly space. And oh, by the way, has no obvious signs of propulsion, no wings, no control surfaces and yet still can defy the natural effects of Earth's gravity. That's precisely what we're seeing.
The above quote is a description of a UFO given by Luis Elizondo, a military counterintelligence officer and former director of the Advanced Aerospace Threat Identification Program (ATTIP), a secretive unit of the Pentagon that studied UFOs. Luis gave this definition during a documentary on CBS news. It's the best documentary I've seen on UFOs because it offers some of the best type of evidence from sophisticated surveillance and from trained military pilots. The documentary also goes over some of the skepticism. Here's the full documentary:
1. Are UFOs real? (UFO defined earlier in this post. It's referred to as "technology", which implies intelligence behind it).