Victims demand restrictions on US gun sale

In an emotionally charged session, the US Congress has formally started looking into the issue of gun control, weeks after the deadly Newtown mass shooting. The Senate Judiciary Committee is hearing from those pushing to rein in weapons sales, and those arguing that doing so curbs basic freedoms. Victims of gun violence have been sharing their personal stories, hoping that politicians will make good on their promise to pass gun control legislation. Al Jazeera's John Hendren reports from the Chicago suburb of Winnetka.