News War is a very nicely done PBS series by the masterful Lowell Bergman. You can even watch it over the web and there are extensive and detailed interview transcripts of many people (including Judith Miller, Carl Bernstein, Earl Caldwell, et al). A great website. Following is some info about the doc. [Thanks to Richard Sambrook for the link.]
In a four-hour special, News War, FRONTLINE examines the political, cultural, legal, and economic forces challenging the news media today and how the press has reacted in turn. Through interviews with key figures in print, broadcast and electronic media over the past four decades — and with unequaled, behind-the-scenes access to some of today’s most important news organizations, FRONTLINE traces the recent history of American journalism, from the Nixon administration’s attacks on the media to the post-Watergate popularity of the press, to the new challenges presented by the war on terror and other global forces now changing — and challenging — the role of the press in our society.