http://www.nsa.gov/public_info/_files/ufo/now_you_see.pdf
Of course this does not automatically mean aliens, but I believe if other countries had this kind of technology except US and it's allies, then it can easily take over the world if it wanted to, which makes me believe it is unlikely these are terrestrial. At least this account is verifiably hosted on the government's own servers.
Of course this does not automatically mean aliens, but I believe if other countries had this kind of technology except US and it's allies, then it can easily take over the world if it wanted to, which makes me believe it is unlikely these are terrestrial. At least this account is verifiably hosted on the government's own servers.