The NSA likes to read other people’s mail. It’s a bad habit that would be frowned upon if it weren’t for the fact that the NSA is reading other people’s mail to try to thwart any national security threats. The problem is, the people who send this mail don’t just type their letters in Word and email them. They use cryptographic systems to scramble the mail so that people like the cryptanalysts at the NSA can’t read it. This doesn’t stop the NSA. In fact, it seems they relish the thought of figuring out how to break the code used to encrypt the mail they want to read.