"This cooperation includes a secret underground base on Mars, where there are American and alien representatives." Wouldn't this require some pretty big coordination to pull off? Assuming the UFOs didn't just suck up some astronauts with a tractor beam... Just seems like lots of people would have to know about this, making it hard to keep secret. I'd have a hard time believing Trump would know about this and never sa…
Considering the Air Force can't hide the X-37B from amateur astronomers it's more than a little suspect that Americans have been traveling to Mars for decades without anyone noticing anything leaving.
You only hear about things that are no longer a secret. This only means you know about ex-secrets that are no longer secrets now. This is different than saying there are no secrets anymore.
Anything that's a secret today isn't known to us.