Bryan Burrough is the lead writer of the new Vanity Fair article "The Snowden Saga: A Shadowland of Secrets and Light."
Reuters: D.E.A. Conceals Evidence in Investigations of Americans
Former intelligence analyst Edward Snowden caused a massive controversy—and a national debate—when he leaked classified documents revealing the extensity of NSA surveillance programs. But according to an exclusive report by Reuters, for the past two decades another U.S. agency has tapped huge amounts of data to investigate American citizens.