This is directly from the FBI website.
https://vault.fbi.gov/hottel_guy/Guy...%20of%201/view
There are many official documents like this. Still people just don't seem to care. And this is while NASA and others are spending zillions of tax payers money searching for life.
I'm currently watching "Steven Greer: UFOs and the Deep National Security State" from last Saturday. You should check it out!:
Just watch it before commenting as if you knew everything about it...