SAN FRANCISCO (AP) — At least a dozen immigrant workers who were forced to live in squalid conditions and to work construction jobs for little or no pay were rescued from a forced labor ring in California allegedly run by a man who has been arrested, federal and local officials said Wednesday. Many of the immigrants who were in the country illegally lived in a warehouse in the San Francisco Bay Area city of Hayward that did not have running water and was locked from the outside at night, the office of U.S.