You have to have been sleeping under a rock not to know that UFO's are real, and the US government has been hoarding, and hiding, this information. Why still a secret? The technology we can learn from openly discussing this is huge. Crafts that can travel 13,000 mph, evade radar, and fly through air and water similarly? Mark Stross thinks we can have this tech in the next 300 years unless we get real about what we know about these unidentified aerial phenomena.