Around U.S. and World, Victims of 9/11 Commemorated on...

Sunday was filled with solemn ceremonies in New York City, Shanksville, Pa., at the Pentagon and elsewhere in the world to celebrate the lives of the people who were killed in the terrorist attacks 10 years ago on Sept. 11, 2001. The NewsHour team reports on the how the 9/11 anniversary was commemorated.