Reading more about the Britney Spears thing here, and I enjoyed the way they actually parse the messages.
It's nice to know that even Russian espionage groups have to deal with that one guy down the hall who insists on using unreadable regular expressions instead of simply writing out the code. Somewhere out there is an FSB agent who cares not for the inefficiencies of quadratic complexity string parsing if it means saving 3 lines of code.