For the NSA, overflowing with tens of billions of dollars in post-9/11 budget awards, the cryptanalysis breakthrough came at a time of explosive growth, in size as well as in power. Established as an arm of the Department of Defense following Pearl Harbor, with the primary purpose of preventing another surprise assault, the NSA suffered a series of humiliations in the post-Cold War years. Caught offguard by an escalating series of terrorist attacks—the first World Trade Center bombing, the blowing up of US embassies in East Africa, the attack on the USS Cole in Yemen, and finally the devastation of 9/11—some began questioning the agency’s very reason for being. In response, the NSA has quietly been reborn. And while there is little indication that its actual effectiveness has improved—after all, despite numerous pieces of evidence and intelligence-gathering opportunities, it missed the near-disastrous attempted attacks by the underwear bomber on a flight to Detroit in 2009 and by the car bomber inTimes Square in 2010—there is no doubt that it has transformed itself into the largest, most covert, and potentially most intrusive intelligence agency ever created.
In the process—and for the first time since Watergate and the other scandals of the Nixon administration—the NSA has turned its surveillance apparatus on the US and its citizens. It has established listening posts throughout the nation to collect and sift through billions of email messages and phone calls, whether they originate within the country or overseas. It has created a supercomputer of almost unimaginable speed to look for patterns and unscramble codes. Finally, the agency has begun building a place to store all the trillions of words and thoughts and whispers captured in its electronic net. And, of course, it’s all being done in secret. To those on the inside, the old adage that NSA stands for Never Say Anything applies more than ever.