Daniel Ellsberg, co-defendant in the Pentagon Papers trial, answers questions from newsmen outside the Federal Building in Los Angeles on Tuesday, May 9, 1973. Defense attorneys in the trial said on Tuesday that they will appeal to a higher court immediately if Judge Matt Byrne rejects their demand to throw out the case because of Watergate and White House involvements. (AP Photo/ Wally Fong)

U.S. Sen. Charles Percy, R-Ill., is shown at a news conference on Monday, May 7, 1973 in Bridgeport, Connecticut, where he said that he was pleased at the pending announcement by Attorney General designate Elliott Richardson that Richardson would appoint a special prosecutor in the Watergate investigation, and that the appointment of a special prosecutor was necessary to restore the public?s faith and confidence in government. Percy was in Bridgeport to address a meeting of the Connecticut Business and Industry Association. (AP Photo/Robert Child)

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

A May 7, 1973 close-up of reporter Bob Woodward, whose reporting of the Watergate case won a Pulitzer for the Washington Post. (AP Photo)

Washington Post writers Carl Bernstein, left, and Robert Woodward, who pressed the Watergate investigation, are photographed in Washington, D.C., May 7, 1973. It was announced that The Post won the Pulitzer Prize for public service for its stories about the Watergate scandal. (AP Photo)

Sen. Charles Percy, R-Ill, answers a question during an interview in his Washington office on May 6, 1973. Percy said if President Richard Nixon???s re-election effort had been left up to the Republican National Committee the Watergate affair would never have taken place. (AP Photo/Charles Tasnadi)

Former presidential advisor H.R. Haldeman is seen outside the new Senate office building where he appeared before a special committee investigating the Watergate matter, May 4, 1973, in Washington. (AP Photo/Paul Vathis)

Martha Mitchell, wife of former Attorney General John Mitchell, answers newsmen's questions outside her lawyer's office after giving a deposition in the Watergate civil case in New York, Thursday, May 4, 1973. (AP Photo)

Martha John Mitchell carries a worn bible, as she makes her way through throngs of newsmen to give a deposition about the Watergate case to a lawyer in New York City on May 3, 1973. "I wouldn't want to have to swear on a dictionary," quipped the wife of former Atty. Gen. John Mitchell. (AP Photo)

Presidential Press secretary, Ron Ziegler talks with newsmen Monday April 30, 1973 at the White House where he announced the President's descision to accept the resignations of Att. Gen. Richard G. Kleindienst and White House aides HR Haldeman and John D. Erlichman in a shakeup stemming from the Watergate affair. He also announced the firing of White Hourse counsel John Dean III. (AP Photo)

Democratic National Committee Chairman Robert F. Strauss, left, speaks out about the Watergate case during a party at the National Democratic Governors Caucus in Huron, Ohio at night on Sunday, April 29, 1973. At the right is South Carolina Gov. John C. West. (AP Photo/Steve Pyle)

Daniel Ellsberg, co-defendant in the Pentagon Papers case, talks to newsmen outside the Federal building in Los Angeles on Friday, April 28, 1973 after the judge in the case released a government memorandum saying G. Gordon Liddy and E. Howard Hunt, convicted Watergate conspirators, had burglarized the office of Ellsberg?s psychiatrist. Ellsberg called it another instance of ?political espionage.? (AP Photo/Wally Fong

Robert Strauss, national chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ ED KOLENOVSKY)

Robert Strauss, national chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ ED KOLENOVSKY)

Robert Strauss, national chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ ED KOLENOVSKY)

Robert Strauss, National chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ EFK)

Robert Strauss, national chairman of the Democratic Party, as he received the party lock in the wake of the Watergate case at the Houston Press Club Gridiron show on April 23, 1973. Rather than the key to the city, the press clubbers thought the lock was more appropriate. The presentation was made by Master of Wit, Morris Frank, left. (AP Photo/ ED KOLENOVSKY)

Workmen remove a desk from a Democratic National Committee office in the Watergate complex in Washington on April 20, 1973. (AP Photo)

Democratic National Committee office in the luxurious Watergate complex in Washington on April 20, 1973. (AP Photo)

Republican National Chairman George Bush, standing, talks about the Watergate case and Democratic National Chairman Robert Strauss listens Wednesday during a joint appearance before the National Press Club on April 18, 1973 in Washington. (AP Photo)