Report questions effectiveness of Federal Protective Service . Once inside the facilities , the testers assembled the bombs in restrooms , put them in briefcases and `` walked freely '' into government offices , according to the Government Accountability Office . Plainclothes investigators test security at 10 federal buildings in 4 U.S. cities . Score: 6 Agency chief says changes made but effects wo n't be felt for months .
Report questions effectiveness of Federal Protective Service . Plainclothes investigators test security at 10 federal buildings in 4 U.S. cities . Score: 6 Agency chief says changes made but effects wo n't be felt for months .