FILE - In this April 18, 1988 file photo, Adolfo Calero, member of the Nicaraguan Resistance, raises his arm and says "I am happy to be here," after a visit to the opposition newspaper La Prensa in Managua, Nicaragua. Calero, one of the principal leaders of the U.S.-backed Contra rebels who battled Nicaragua's Sandinista government in the 1980s has died, according to reports Saturday, June 2, 2012. He was 81. (AP Photo/Mario Tapia, File)