After 9/11, Americans 'summoned strength,' Obama says
Clip: 09/11/2016 | 2m 58s
Fifteen years ago, the U.S. faced the worst attack on American soil since Pearl Harbor. In New York, family members read the names of the victims at a ceremony marking the anniversary, while Obama spoke at the Pentagon. Watch some of the highlights of the 15th anniversary.
Aired: 09/11/16
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