Former Rep. Gabby Giffords, D-Ariz., and her husband Mark Kelly at Wednesday's Senate hearing about gun violence. Chip Somodevilla/Getty Images hide caption toggle caption Chip Somodevilla/Getty Images The Two-Way Giffords: 'We Must Do Something!' About Gun Violence January 30, 2013 The national debate over gun laws has taken on urgency since last year's shootings at an elementary school in Connecticut and a movie theater in Colorado. Giffords, who was shot in January 2011, is adding her voice. At a Senate hearing, all sides made their cases.