"I suggest they already have" They have the technology to identify the sex of a person walking down a street from space. I have no doubt they know about Sasquatch. I would also like to declare that I am not against someone shooting a squatch. However, Legally speaking it had better be attacking you . ( and one must not have a internet trail of you posting you want to kill one for proof of existence ). Which to me actually wouldn't be farfetched. I don't ascribe to the gentle giant view. And I believe anytime one is seen ,heard or evidence of recent habitation is observed . Your life is forfeit