This is so ridiculous. Any alien capable of getting to Earth is capable of going wherever the hell it wants to go. The idea that ‘they’ are hiding the aliens is hilarious. It’s as if the aliens are contacting the global traffic control system and requesting a runway. What horsepuckey.
The universe is so vast that a far off civilization could establish space travel, and never come anywhere near Earth. They might receive one of the Obama / Biden Regime speech broadcasts and never, ever come close to us. Or, an advanced civilization might view the speeches and send all their own leftist wackos to the Earth. Leftist aliens exiled to San Francisco and New York, where they would fit right in. .
Any advanced alien species would have mastered nanotechnology and therefore would be able to disguise data collecting avatars as molecules within any environment.
They could collect any information they want any time they want.
NASA could be hip deep in the alien avatars and not know anything about it.
Really?