"I'd say it's a reasonable question and that the White House ought to be conducting its own internal investigation of White House personnel who were in Cartagena, just to make sure that none of them were involved in this kind of inappropriate behavior," said Sen. Joe Lieberman, chairman of the Senate Homeland Security Committee. (Associated Press/CBS News)

"I'd say it's a reasonable question and that the White House ought to be conducting its own internal investigation of White House personnel who were in Cartagena, just to make sure that none of them were involved in this kind of inappropriate behavior," said Sen. Joe Lieberman, chairman of the Senate Homeland Security Committee. (Associated Press/CBS News)