 Former U.S. Ambassador arrested in Florida, accused of serving as an agent of Cuba. A former American diplomat who served as U.S. Ambassador to Bolivia has been arrested in a long-running FBI counterintelligence investigation, accused of secretly serving as an agent of Cuba's government the Associated Press has learned. Manual Russia, 73, was arrested in Miami on a criminal complaint, and more details about the case are expected to be made public at a court appearance, said two people who spoke to the Associated Press on condition of anonymity because they were not authorized to discuss an ongoing federal investigation. One of the people said the Justice Department case accuses Russia of working to promote the Cuban government's interests. Federal law requires people doing the political bidding of a foreign government or entity inside the U.S. to register with the Justice Department, which in recent years has stepped up its criminal enforcement of illicit foreign lobbying. The Justice Department declined to comment. It was not immediately clear if Russia had a lawyer and a law firm where he previously worked said it was not representing him. Russia has served in Italy, Honduras, Mexico and the Dominican Republic and worked as a Latin American expert for the National Security Council.