MEXICO CITY (AP) — Mexico’s military has captured the security and operations chief of the nation’s most powerful drug cartel, officials said Thursday, delivering another punishing blow only weeks after U.S. officials rounded up hundreds of cartel members north of the border. Vicente Zambada allegedly became a top Sinaloa cartel leader last year, with control over logistics and authority to order assassinations of government authorities and rivals. He was arrested before dawn Wednesday at a home in an elite Mexico City neighborhood, said Gen. Luis Arturo Oliver, the Defense Department’s deputy chief of operations.