The Letter

After numerous rounds of "We don't know if Osama is still alive", Osama
himself decided to send Ted Kennedy a letter in his own handwriting to
let him know he was still in the game.

Kennedy opened the letter which appeared to contain a single line of
coded message: 370HSSV-0773H.

Kennedy was baffled, so he e-mailed it to John Kerry. Kerry and his
aides had no clue either, so they sent it to the FBI. No one could solve it at
the FBI so it went to the CIA, then to the NSA.

With no clue as to its meaning, the FBI finally asked Marine Corps
Intelligence for help
Within a few seconds the Marines cabled back with this reply: "Tell
Kennedy he's holding the message upside down."