LOS ANGELES (AP) — The U.S. government agency that oversees immigration applications is launching an office that will focus on identifying Americans who are suspected of cheating to get their citizenship and seek to strip them of it. U.S. Citizenship and Immigration Services Director L. Francis Cissna told The Associated Press in an interview that his agency is hiring several dozen lawyers and immigration officers to review cases of immigrants who were ordered deported and are suspected of using fake identities to later get green cards and citizenship through naturalization.