3 in Prostitution Scandal Being Forced Out of Secret Service, Officials Say WASHINGTON - Three Secret Service employees implicated in a prostitution scandal during President Obama's trip to Colombia last week are being forced out of the agency, officials said Wednesday night. The head of the Secret Service has told other government officials that the agency plans to fire one person in connection with the investigation into the reported misconduct, according to a person briefed on the matter. The director, Mark Sullivan, has also told others that one other employee implicated in the incident, which has drawn intense scrutiny, plans to retire and another will resign. Among the people leaving the agency are two supervisors. Mr. Sullivan has also said that the employee being fired has threatened to sue. "These guys have the clearest cases," said the person briefed on the matter. Eight other agency employees are still being investigated, the person said, and will probably face some type of discipline or termination. The individuals under investigation have been asked by investigators to take lie detector tests, the person said. Only one has agreed to take the test, the person said. The Secret Service has also expanded its internal investigation to look at what other personnel have done on trips, the person said. So far, investigators have not uncovered anything similar to what apparently happened in Colombia last week. The Secret Service opened an investigation into the alleged misconduct after officials learned that there had been a dispute between a prostitute and a Secret Service agent over money and that other personnel may have been involved with prostitutes. High-ranking agency officials ordered 11 individuals to return to the United States, where they have faced questioning in connection with the incident.