WTF was this FBI investigation about?

Roger Boisjoly's memo is available here. It is said he regretted not being more vocal about the potential problem for the rest of his life.

The NSA Ant Product Catalog shows all the ways they could be spying on you.

More info about Operation Unthinkable available here.

Target Acoustic Kitty is one of the more ridiculous unclassified projects you'll find.

Source.

Not exactly an unclassified document, but this 4chan stalking case is very creepy. Here is a sampling of "the archiver's" twisted work.

Project Pluto was an attempt to make nuclear war even more destructive.

The Black Vault is a good place to find more creepy docs.