Hundreds of Filipino guestworkers lured to teach in Louisiana public schools were cheated out of tens of thousands of dollars and forced into exploitative contracts by an international trafficking ring run by labor contractors, according to a class action lawsuit filed today by the °Ä²Ê¿ª½± (°Ä²Ê¿ª½±), the American Federation of Teachers (AFT) and Covington & Burling LLP.