Talk about plum assignments: When Boston native Carrington Cazeau 鈥17 went to Washington, D.C., for an internship with the U.S. Marshals Service, he was one of only four assigned to the Superior Court of the District of Columbia. 鈥淣ot many people get to work there,鈥 says Cazeau, who is planning a career in federal law enforcement. He鈥檒l graduate from the 听with degrees in justice studies and psychology听later this month.听