are there actually any published photos of the men in black...and does anyone ACTUALLY know why they exist?

there are a few books out there. Some of the stuff I've read usually stay within the conspiracy theories, nothing too ordinary :

- Gov't. agents working for a black-project group.
- aliens that go incognito with ulterior motives.
- ?

pictures are rare (if any) because these men usually disappear rather quickly.

The thing about the movie that I didn't like was the MOVIE. It was entertaining but it trivialized the whole "phenomena".