Leonard Downie, a former executive editor of The Washington Post, is the Weil family professor of journalism at the Walter Cronkite School of Journalism at Arizona State University. This article is based on his report “The Obama Administration and the Press,” forthcoming Thursday from the Committee to Protect Journalists. In the Watergate era, the Nixon administration’s telephone wiretaps were the biggest concern for journalists and sources worried about government surveillance. That was one of the reasons why Bob Woodward met with FBI official Mark Felt (a.k.a. “Deep Throat”) in an underground parking garage in Arlington, and why he and Carl...