. I can't believe the government thought some of this footage warranted keeping it from the public for so long.

They obviously blatantly didn't. I would not even pose the question rhetorically. This disclosure is 100% empty placeholder.

I assume that the US government has active diplomacy and relationships with some kind of non Earth human government(s) and will never, ever disclose a crumb of it. All that Trump is prepared to do is dispense cover stories that have been covered endlessly in UFO fan circles.

Allegedly one of the production team of Stargate SG-1 was approached by the CIA and was told that they (the TV producers) got it mostly right (the gates, wormholes, alliances with alien civilizations) and was then invited to directly request technical support by the USAF whenever needed.