CHESTERFIELD, N.J. (AP) - Contractors working in New Jersey prisons will undergo special training after a skit authorized as part of a drug treatment program for inmates featured a spoof on the Ku Klux Klan. Five employees of the Chicago-based Gateway Foundation Inc., the company whose workers approved the skit, have been fired, and the company has been cautioned that further incidents won't be tolerated, said Matthew Schuman, a spokesman for the state Department of Corrections. "The company was told this better not happen again," he said. Several inmates who took part in the Jan. 6 skit at the Garden...