NSA

"Apparently, not only did the NSA exist, but it was considered one of the most influential government organizations in the world. It had been gathering global electronic intelligence data and protecting U.S classified information for over half a century. Only 3 percent of Americans were even aware it existed."
These are the lines I remembered when i saw the above video about super computers of NSA (National Security Agency). This NSA is the same organization about which Dan Brown talks in his book “Digital Fortress”.In this book he also talks about NSA's secret machine which according him is the most expensive piece of computing equipment in the world ,capable of breaking any code in minutes.