For 9/11 Anniversary, Ceremonies in Va., Pa., N.Y.

Aired: 9/11/2012 | 0:05:54 | Clip
Moments of silence were observed around the country in remembrance of the 9/11 attacks in New York, Virginia and Pennsylvania. As Americans paused to remember and honor the dead, so too did the presidential campaigns and the U.S. House and U.S. Senate. Gwen Ifill reports.