Matthew Livelsberger said that China and the US have aircraft powered by "gravatic propulsion systems."

You should know that there are two videos out there on the Internet showing 3 orb-like drones making Malaysian jet MH370 disappear mid-air. One video is from above, via satellite, and one is from the side in infrared.

Ashton Forbes claims 20 engineers were on board who were on their way to China to disclose this advanced technology.

Could be a hoax. Or could be what Burg is talking about.