Why Was the Neocon Express Not Invited to This Party?

TMZ says it has obtained a never-before published photograph which appears to show John F. Kennedy on a boat filled with naked women -- "it's a photo that could have altered world events":
Update: Now The Smoking Gun claims that TMZ have fallen for a hoax, and that the photo was in fact part of a 1967 photo shoot for Playboy. Personally, I like the Kennedy story better. But the hoax is pretty good too.