Before it began to debate gun control this morning, a Senate committee heard from Gabrielle Giffords and her former astronaut husband, Mark Kelly. The former Congresswoman was a gun owner before she was gunned down in a mass shooting in Arizona. Later, the committee heard from Wayne LaPierre, Executive Vice President of the National Rifle Association. Rebecca Kaplan, who reports for the National Journal on the White House and Congress, covered today's hearing.