PLUM ISLAND, N.Y. -- A human body has washed ashore on New York’s tiny Plum Island, where a U.S. government lab studies dangerous animal diseases. Police say a security guard discovered the clothed body Thursday afternoon on the island’s southwest beach area where access is restricted. Police on Long Island said an autopsy determined the partially decomposed body was that of a black male about 6 feet tall with a large build and very long fingers.