Re:The NSA (Score 1)

The backdoor mentioned in Bruce Schneier's article requires the knowledge of a key related to the numbers in the algorithm, and the key can only be generated when generating the numbers in the algorithm (which was done by the NSA, and I'd seriously doubt that the NSA would let the key get out). So while yes, you're right in that an unsecured backdoor can be exploited by "the enemy", you've picked a bad example.