 The mood between the U.S. and North further turned sour when Hanoi went public with the details of the agreement.The Nixon Administration claimed that North Vietnamese negotiators had used the pronouncement as an opportunity to embarrass the President and to weaken the United States.White House Press Secretary Ron Ziegler told the press on November 30 that there would be no more public announcements concerning U.S. troop withdrawals from Vietnam since force levels were down to 27,000.