U.S. Education Secretary Arne Duncan said Friday that teachers have been ?beaten down for too long? and endorsed "doubling" their salaries. ?We need to elevate teachers,?? Duncan told a gathering of officials and educators in the fresco-ceiling library of Carl Schurz High School. ?I think we need to double salaries for teachers. We need to start them at a much higher level.? Teachers ?shouldn?t have to take a vow of poverty,?? Duncan said. ?Great teachers should have the chance to make--pick a number--$130,000, $140,000, $150,000.??