7/11: Firsthand look at Chicago gang violence; TV's most memorable moments

      |More innocent children have been gunned down in Chicago's ongoing gang war. Dean Reynolds rides along with Chicago police to get a direct look at the problem; And, a new survey ranks TV moments for their impact, not just by asking people whether they remembered watching them, but whether they can remember where they watched it and whether they talked about it with others. Anthony Mason has the highlights.

      Related Videos