LA VILLA, Texas - A former police officer about to face trial on drug charges and five alleged members of a violent drug gang escaped from a privately run federal jail near the Mexican border by overpowering a guard and cutting through at least four fences, officials said Wednesday. More than 60 local and federal law-enforcement officers using helicopters and bloodhounds were searching near the East Hidalgo Detention Center, a facility owned by a Lafayette, La., company about 20 miles north of the border. A four square-mile security perimeter was set up around the area during the initial investigation but...