People– yes, even those who live in countries with 00 per-capita GDP and hang-dry their clothes (gasp!)– do not separate with their families, friends, and cultures so lightly. The earliest citation comes from 1953: UFO researcher Albert Bender, who published a small newsletter called "Space Review", explained a missed issue (which he had promised would blow the lid off the secrecy about UFOs) by claiming that "three men wearing dark suits" had approached him and ordered him "emphatically" to stop publishing material about flying saucers. You have too may important friends who would raise hell, myself included.
If The Men in Black are hunting a character, he should look over his shoulder for the Van in Black and scan the skies for the Black Helicopters.
If he has a name, expect it to be an obvious pseudonym, one of the most common Anglo-Saxon names, such as "Mr. More cynical portrayals just bully you into keeping your mouth shut. Less often, they'll make An Offer You Can't Refuse: join or forget. Conspiracy Theorists live in fear of the Men In Black. Despite being the symbolic presence of The Oppression Of The Man, The Men in Black have the mystique of being badass and Cool, so heroes can be associated with them.
The Man In Black is the generic intimidating agent. Laser-Guided Amnesia is a pretty common tool in their arsenal, especially in more idealistic versions, wiping out a memory you're probably better off without so you can go back to a normal life.
I’ll flat-out say it: from the perspective of someone seeking a long-term life partner, preferably in the next decade, American white women just aren’t, in aggregate terms, very good.
Sure, some individual American white women are great– my mother is an American-born white woman, and my parents are still together after 35 years– but there are far too few of them.