In 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. In part one of News War: Secrets, Sources & Spin, FRONTLINE examines the political and legal forces challenging the mainstream news media today and how the press has reacted in turn. Correspondent Lowell Bergman talks to the major players in the debates over the role of journalism in 2007, examining the relationship between the Bush administration and the press; the controversies surrounding the use of anonymous sources in reporting from Watergate to the present; and the unintended consequences of the Valerie Plame investigation -- a confusing and at times ugly affair that ultimately damaged both reporters' reputations and the legal protections they thought they enjoyed under the First Amendment.