Mexico on Wednesday said it would begin a review of labor practices at a General Motors plant in central Mexico after a formal complaint from the office of the U.S. Trade Representative (USTR). Mexico"s economy and labor ministries said in a statement they had received the USTR"s request for the Mexican government to "conduct a review of the alleged denial of rights to workers at the General Motors plant in Silao, Guanajuato." Mexican authorities have ordered GM"s union in the city of Silao to repeat a worker vote over their collective contract after detecting numerous "irregularities" in the initial process last month. read more