Conflicting images of the Secret Service and new questions about the military's handling of the prostitution scandal in Colombia emerged on Capitol Hill on Wednesday.
Senators challenged Homeland Security Secretary Janet Napolitano to reconcile the image of agents who protect the president's life with the dozen officers and supervisors implicated in the sordid affair.
Meanwhile, the Defense Department acknowledged to other lawmakers that it knew that six military personnel had broken curfew rules prior to President Barack Obama's arrival at a Latin American summit in Cartagena but let them remain on the job. In addition to the Secret Service officers and supervisors, another dozen military personnel also were implicated in the prostitution scandal. The chairman of the Senate Armed Services Committee, Sen. Carl Levin, D-Mich., questioned the military's decision.
"That may have been the right decision, but it nonetheless raises an interesting question as to whether ... that was an appropriate decision to let them continue on the mission, given the seriousness of the mission," Levin told reporters.
The Defense Department on Wednesday briefed Levin and Sen. John McCain, R-Ariz., about its investigation. McCain complained afterward that the Pentagon officials who met with them "provided appallingly little new information" and were "woefully unprepared to answer even the most basic questions about what happened in Cartagena."
Navy Capt. John Kirby, a Pentagon spokesman, said the Defense Department would keep Congress "as informed as possible as the investigation proceeds."
Testifying at an oversight hearing, Napolitano told the Senate Judiciary Committee that the incident involving as many as 20 women appeared to be an isolated case. She said the agency's Office of Professional Responsibility had never received previous complaints in the past 2 1/2 years, but it was unclear why she specified that period.
The chairman of the Judiciary Committee, Sen. Patrick Leahy, D-Vt., praised the Secret Service as "wise, very professional men and women" and called it shocking that so many of the agency's employees were involved in the scandal.
"It really was, I think, a huge disappointment to the men and women of the Secret Service to begin with, who uphold very high standards and who feel their own reputations are now besmirched by the actions of a few," Napolitano said.
Sen. Lindsey Graham, R-S.C., pressed Napolitano about whether she believes this was the first incident involving prostitutes and the Secret Service.
"The only reason I suggest that we need to maybe look at little harder is because we're lucky to have found out about this. If there hadn't been an argument between one of the agents and, I guess, a prostitute, for lack of a better word, about money, we'd probably have never known about this."
If the misconduct is part of a pattern, Napolitano added, "that would be a surprise to me."
The scandal erupted after a fight over payment between a Colombian prostitute and a Secret Service employee spilled into the hallway of the Hotel Caribe ahead of Obama's arrival at the Summit of the Americas.
The Secret Service announced this week that all 12 implicated officers or supervisors had been dealt with: eight forced out, one stripped of his security clearance and three cleared of wrongdoing, all within two weeks of the night in question.
A dozen military personnel have also been implicated, and Defense Secretary Leon Panetta said they have had their security clearances suspended. The military said at the time the scandal broke that the enlistees involved were confined to quarters and under orders to have no contact with any other people. It also said the men would be returned to the United States at the end of their mission.
Napolitano also said the government is reviewing training rules for Secret Service employees to make clear what behavior is acceptable and what's unacceptable.
"The training is focused on professionalism, on conduct consistent with the highest moral values and standards," she said.
Graham told Napolitano that the Secret Service officers and supervisors involved should have known their conduct was wrong: "I don't think it's a lack of training."
The White House said Wednesday that the conduct of the employees punished in the ongoing scandal was "inappropriate" and unacceptable for people representing the United States abroad.
"The president said that if the accusations that had surfaced at the time turned out to be true, he would be angry. And of course, he is angry," presidential spokesman Jay Carney told reporters traveling with Obama on Air Force One.
The Judiciary Committee hearing was the first time Napolitano has faced public questioning from lawmakers since the scandal. Senators praised the speed of the probe and the affinity that Secret Service Director Mark Sullivan had for answering senators' questions before they are asked.
Napolitano said the Homeland Security Department's inspector general is also supervising the investigation and using "the investigatory resources of the Secret Service." She added add that she expected the inspector general to do a complete investigation.
Elsewhere on Capitol Hill Wednesday, House Speaker John Boehner said the scandal is an embarrassment to the agency and the United States, but stopped short of calling for an independent investigation.
"What I'm looking for are the facts. I don't want to just jump out there and make noise just to be making noise," Boehner told reporters. "Let's get to the bottom of this."
Associated Press writers Robert Burns, Julie Pace, Ben Feller, Jim Kuhnhenn and Donna Cassata in Washington and Lolita C. Baldor in Brasilia, Brazil, contributed to this report.