Convicted Watergate conspirator E. Howard Hunt clears his throat and takes a drink of water during his testimony before the Senate Watergate Committee Tuesday on Capital Hill, September 25, 1973. Hunt told the committee that he suspects one of his own Watergate bugging crew was a double agent who betrayed the white papers to police. (AP Photo/Henry Griffin)

Convicted Watergate conspirator E. Howard Hunt clears his throat and takes a drink of water during his testimony before the Senate Watergate Committee Tuesday on Capitol Hill, Sept. 25, 1973. Hunt told the Committee that he suspects one of his own Watergate bugging crew was a double agent who betrayed the wiretappers to police. (AP Photo/Henry Griffin)

John Hunt, left puts his hand out to lead his father, E. Howard Hunt, from the Senate Watergate Committee hearing room after Howard testified,September 24, 1973. Between them is Hunt's daughter, Lisa. Hunt, a convicted Watergate conspirator and former CIA agent, is the first witness to appear before the committee which resumed hearings Monday in Washington. (AP Photo)

E. Howard Hunt speaks to a question from the counsel for the Senate Watergate Committee as the hearings resume Monday in Washington, D.C., Sept. 24, 1973. Hunt, a former agent with the Central Intelligence Agency, is a convicted Watergate conspirator. (AP Photo)

Watergate special prosecutor Archibald Cox walks past the White House after meeting with presidential lawyers in an effort to reach a compromise in the court battle over access to presidential tapes, Sept. 20, 1973. The Washington Monument is in the background. (AP Photo/John Duricka)

Charles Wright, Pres. Nixon's lawyer, leaves the U.S. District Court in Washington accompanied by his wife Custis, Sept. 12, 1973. Wright argued for the president saying that it would cause grave damage to the presidency to yield confidential tape recordings to the Watergate grand jury. (AP Photo/Charles Bennett)

Watergate special prosecutor Archibald Cox and one of his assistants, Jill Volner, arrive at U.S. District Court in Washington, Thursday September 11, 1973 to argue before a nine-judge appeals court that the President should turn over the White House tape recordings on Watergate. (AP Photo)

Special Watergate prosecutor Archibald Cox leaves U.S. district court in Washington, Tuesday, September 11, 1973 accompanied by his wife, Phyllis. Cox argued before a nine judge appeals court for the release of White House tapes related to the Watergate affair. (AP Photo/Charles Bennett)

Former Interior Secretary Walter J. Hickel, fired by President Richard Nixon two years ago after urging a more open administration, addresses a meeting of the National Press Club on Thursday, Sept. 6, 1973 in Washington. Hickel said that Nixon created the government climate which allowed the Watergate scandal to occur. (AP Photo/ Bob Daugherty)

Special Watergate prosecutor Archibald Cox sits in his Washington office as he reads U.S. District Judge John Sirica's order that President Nixon produce tapes of the White House conversations on Watergate for private judicial inspection, Aug. 29, 1973. (AP Photo/Bob Daugherty)

Democratic National Champion Robert S. Strauss addresses a news conference in New York City on August 29, 1973. Strauss said he was delighted at Judge Sirica's decision ordering President Richard Nixon to release tapes to the judge. He called Watergate

George H.W. Bush , National Chairman of the Republican Party, takes to his speed boat for a ride at Kennebunkport, Maine on August 24, 1973 to outrun the pressures of Watergate and his party's political troubles. (AP Photo)

This photograph shows the first and last pages of the complaint filed in federal court in Washington, D.C., by the Senate Watergate Committee, Thursday, Aug. 9, 1973. The complaint names as defendant Richard M. Nixon, individually and as President of the United States. The signatures appear on the last page of the complaint. (AP Photo)

In a cartoon from Pravda, the Soviet Communist party newspaper, a figure labeled ??sreactionary press??? at right, attempts to raise the cold war from its coffin on August 8, 1973. Wreath before the coffin at left reads ??sTel Aviv.??? Wreath in center reads ??sNATO??? soviet insistence that the cold war is dead may explain the reluctance of the Soviet press to take a critical stance towards President Nixon in Watergate coverage. (AP Photo)

David Dorsen, assistant chief counsel, left, Stephen Sachs, attorney for Gray, and L. Patrick Gray III look over documents prior to Gray testifying before the Senate Watergate Committee Aug. 6, 1973 in Washington. (AP Photo)

Sen. Daniel K. Inouye (D-Hawaii), with his glasses around his neck listens to testimony from L. Patrick Gray III, former acting director of the Federal Bureau of Investigation, before questioning Gray before the Senate Watergate committee, Aug. 6, 1973 in Washington. (AP Photo)

WASHINGTON, - After the Senate Watergate Committee hearings concluded Friday, August 3,1973 in Washington the reading of a statement by L. Patrick Gray III, former director of the Federal Bureau of Investigation, Senators and counsel held a session. Form left are Senator Sam J. Ervin, Jr.,D-N.C., chairman; Sam Dash, chief counsel; Senator Lowell P. Weicker, Jr.,R-Conn., Senator Howard H. Baker, Jr.,R-Tenn., and Rufus Edmisten, deputy counsel. (AP Photo).

Lt. Gen. Vernon A. Walters, deputy director of the Central Intelligence Agency, is scheduled as opening witness in Senate Watergate hearings on Friday, August 3, 1973. (AP Photo)

Daniel K. Inouye (D-Hawaii), left, and Sen. John M. Montoya (D-N.M.) are shown during the Watergate Senate hearings on Capitol Hill, Aug. 2, 1973. (AP Photo)

PHOTO: EAST NEWS/AFP (FILES) Picture dated 01 August 1973 of US John Erlichman in Washington. Former politician Erlichman, a key figure in the Watergate scandal died at his home at age 73, said his son 15 February. Erlichman president Richard Nixon's domestic affairs adviser was forced to resign from his post over the scandal in 1973 and was convicted two years later for obstruction of justice, conspiracy and perjury in connection with efforts to cover up the burglary of the Democratic National committee offices at the Watergate complex in Washington.