Giffords appeals for gun control

Rep. Gabrielle Giffords, left, and her husband, former astronaut Mark Kelly, waved at the start of a Jan. 8 memorial vigil in Tucson, Ariz remembering the victims and survivors one year after the Arizona congresswoman was wounded in a shooting that killed six others. Kelly is among those testifying today at the year's first Senate hearing on what lawmakers should do to curb gun violence.