great documentary on ufo government secrets
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Another good video about the history of the US military and ufos
unfortunately i can't embed this one as well
click here to view

very interesting the best collection of ufos over latin america
click here to view

Ever wonder how ufos fly and why they seem so flimsy in the sky? - This Quite interesting documentary aired on the history channel about the physics and engineering of ufos, strangely the ideas point to a gravity based propulsion system uncannily like the one proposed by the highly controversial bob lazar
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Don't know mucha bout this one but good footage

Legends from China tell of 716 mysterious stone discs, known as "The Dropa Stones". Some believe the stones hold secrets about ancient contact with extraterrestrials. Discovered in a cave in 1938, each 12" disc contains a double spiral of tiny hieroglyphs that are said to contain the historical record of an alien race called the Dropa that crash-landed in an isolated region of China 12,000 years ago.
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Ufo filmed over jet from new 2007 History channel show:
Below is the a comment from the poster:
A short clip of an object filmed by an unknown photographer during the first Gulf war. The clip is in real time only about 2-3 seconds and is slowed down for more clarity. I have watched the clip many times and am still undecided as to it's validity as an actual flying object. Perhaps someone with photographic knowledge will look at the clip and give an expert assessment. The clip is from an episode of "In Harms Way", shown on the Discovery channel/History Channel, which will air again on 6 October 2007