House Democrats Hold Hearing On Gun Violence Prevention

WASHINGTON, DC - JANUARY 16: (L-R) Superintendent of schools of Newtown, Connecticut, Janet Robinson, Emily Nottingham, mother of Gabe Zimmerman, a staff member to former Rep. Gabrielle Giffords' who was killed during the Tucson, Arizona shootings, chief of police for the City of Chaska, Minnesota, Scott Knight, and Philadelphia Mayor Michael Nutter testify during a hearing before the House Democratic Steering and Policy Committee January 16, 2013 on Capitol Hill in Washington, DC. The committee held a hearing to focus on "Gun Violence Prevention: A Call to Action." (Photo by Alex Wong/Getty Images)