The penetrability of data collected in the digital universe has made protecting the secrecy of government security operations a lot harder. But the US Government's response, says Newsweek investigative reporter William Arkin, has been to create "the biggest secret army" in world history. Thousands of spies, fighters, analysts and clerks...all of 'em kept off the books.  Arkin says it has made holding the people and the billiions of dollars spent on them accountable almost impossible.  Kinda dangerous in a democracy to cut the people out of the awareness loop.