Cuban militant Luis Posada Carriles was arrested in Miami Tuesday by immigration authorities. Posada is a 77-year-old former CIA operative who has been trying to violently overthrow Fidel Castro’s government for four decades. He has been connected to the 1976 bombing of a civilian airliner that killed 73 passengers–the first act of airline terrorism in the Western hemisphere. He recently snuck into the United States and applied for political asylum. We’ll have more on this in a few minutes.