FILE In this Dec. 3, 1979, file photo, a U.S. Marine with an M-16 guards a U.S. Navy bus that was ambushed by Puerto Rican terrorist. Two sailors died and ten were wounded. The terrorist group, which is listed by the U.S. government as a terrorist organization, claimed responsibility for killings, bombings and robberies in the 1970s and ‘80s, including a $7 million holdup of a Wells Fargo depot in 1983. Its visibility diminished after a flurry of arrests in 1985. (AP Photo/FC, File)