ederal agents arrested more than 130 alleged drug traffickers from coast-to-coast Tuesday who U.S. officials said smuggled heroin from Mexico and offered phone-up home delivery like a takeout pizza shop. Beginning before dawn, Drug Enforcement Administration agents conducted arrest raids and searches, seeking up to 150 people, about half of them illegal aliens, according to senior drug enforcement officials, who spoke on condition of anonymity before the official announcement. By early afternoon, the investigation had produced 131 arrests in 15 cities, from Charleston, S.C., to Los Angeles, based on 10 federal indictments and state charges, the officials said. Known as...