SAN DIEGO U.S. agents arrested 22 illegal immigrants Wednesday who worked for a company that provided services to the Camp Pendleton Marine Corps base. The workers, all Mexican men, were arrested at their homes by U.S. Immigration and Customs Enforcement officers during an early morning sweep. Agents were looking for 72 illegal workers employed by Burtech Pipeline, Inc., an Encinitas-based business that had a contract at Camp Pendleton, the base near Oceanside that is home to some 40,000 military personnel, ICE spokeswoman Lauren Mack said. None of those arrested had worked at Camp Pendleton, but Mack said some of the...