Progress since September 11th : protecting public health a. safety of the responders a. residents [microfiche] : hrg. before the Comm. on Gov. Reform, House of Representatives, 109th congr., 2nd sess., September 8, 2006. - Washington : U.S. Gov. Print. Off., 2007. - 3 microfiches ; 105x148mm.. - (Serial N 109-94/45)[MFN: 3670]