A bit of humour from the days when George Dubbya was the US Pres, to start off the week...
After numerous rounds of "We don't even know if Osama is still alive", Osama himself decided to send George Bush a letter to let him know he was still in the game.
He opened the letter and it appeared to contain a coded message: "S370HSSV-0773H"
Bush was baffled, so he emailed it to Dick Cheney. Cheney and his advisors had no clue either, so they sent it to the Republican National Committee. They likewise couldn’t understand it.
Bush sent his to the CIA, which couldn't figure it out either.
Eventually they asked Britain's MI6 for help. MI6 cabled back:
"Tell the President that they are looking at the message upside down."