Baltimore County Police Department Chief James Johnson speaks during the hearing for a Senate Judiciary Committee about gun control on Capitol Hill in Washington D.C., the United States, Jan. 30, 2013. (Xinhua/Fang Zhe)
National Rifle Association (NRA) Vice President Wayne LaPierre speaks during the hearing for a Senate Judiciary Committee about gun control on Capitol Hill in Washington D.C., the United States, Jan. 30, 2013. (Xinhua/Fang Zhe)
Former U.S. Rep. Gabby Giffords (L) who is a shooting victim, accompanied with her husband Navy Capt. Mark Kelly deliveries an opening statement during the hearing for a Senate Judiciary Committee about gun control on Capitol Hill in Washington D.C., the United States, Jan. 30, 2013. (Xinhua/Fang Zhe)
Former U.S. Rep. Gabby Giffords (C) who is a shooting victim arrives at the hearing for a Senate Judiciary Committee about gun control on Capitol Hill in Washington D.C., the United States, Jan. 30, 2013. (Xinhua/Fang Zhe)
Former U.S. Rep. Gabby Giffords (front L) who is a shooting victim, accompanied with her husband Navy Capt. Mark Kelly (front R) arrives at the hearing for a Senate Judiciary Committee about gun control on Capitol Hill in Washington D.C., the United States, Jan. 30, 2013. (Xinhua/Fang Zhe)
National Rifle Association (NRA) President David Keene (L) sits behind while NRA Vice President Wayne LaPierre (2ndR) answers questions during the hearing for a Senate Judiciary Committee about gun control on Capitol Hill in Washington D.C., the United States, Jan. 30, 2013. (Xinhua/Fang Zhe)