Summary: We know that there's no such thing as a completely secure computer system. Is the NSA the nation's largest security risk of them all? Many are concerned about the National Security Agency (NSA) collection of data on US companies and individuals and the very real possibility that it has a way of directly accessing the servers of the world's largest computing platforms: Google, Facebook, Microsoft, etc. It's certainly a situation that deserves attention and concern. But what's missing in this discussion is this: how secure is the NSA's spying system? If a foreign entity wanted to spy on US...