Looks like some people aren’t falling for the old “I didn’t know they were prostitutes” defense. French judges decided Wednesday to keep pimping charges against former International Monetary Fund chief Dominique Strauss-Kahn. Strauss-Kahn has been accused of participating in a prostitution ring while at “libertine” parties, but Strauss-Kahn has insisted that while he may have attended some of these parties, he did not know the women were paid. His lawyers said Wednesday the charges were unspecified. Strauss-Kahn had once been considered a frontrunner to run for president as a Socialist, but his reputation collapsed after a hotel maid in New York accused of him rape. He was cleared of all charges in that case last year, and agreed to a civil settlement with his accuser last week.