US prosecutors announced an indictment on Monday of two former top officials at Venezuela's anti-narcotics agency, including one who became the head of the national guard, over allegations that they took part in a cocaine distribution scheme. The indictment filed in federal court in Brooklyn identified the officials as Nestor Reverol, the former general director of the anti-narcotics agency and onetime commander of Venezuela's National Guard, and Edylberto Molina, a former deputy head of the drug agency and now a military attache posted in Germany.