40th Anniversary of the Watergate Scandal

Richard Nixon says goodbye to members of his staff outside the White House in Washington as he boards a helicopter for Andrews Air Force Base after resigning the presidency in Washington, D.C., August 9, 1974. (AP Photo)

Reporters Bob Woodward, right, and Carl Bernstein, whose reporting of the Watergate case won them a Pulitzer Prize, sit in the newsroom of the Washington Post in Washington May 7, 1973. (AP Photo)

Carl Bernstein, Washington Post reporter is shown in this photo dated May 7, 1973. (AP Photo)

President Richard M. Nixon is shown pointing to the transcripts of the White House tapes in this April 29, 1974, file photo, after he announced during a nationally-televised speech that he would turn over the transcripts to House impeachment investigators

A general view of the Senate Watergate Committee hearings on August 3, 1973. (AP Photo)

Notes taken by White House chief of staff H.R. Haldeman during a June 20, 1972, meeting with President Richard M. Nixon reflect the president's fear that the office in the Executive Office Building might be bugged. (AP Photo)

Members of the Senate Watergate Investigating Committee are seen during a hearing on Capitol Hill in Washington as they listen to witness Robert Odle, foreground, in this May 17, 1973 photo. (AP Photo)

President Richard M. Nixon and his wife Pat Nixon are shown standing together in the East Room of the White House in Washington August 9, 1974. (AP Photo)

Movers remove furniture from the Watergate Complex in Washington, on July 21, 2009. The Watergate Hotel that is part of the complex, was made famous by the Watergate scandal. (AP Photo)