A look back: September 11 attack on the Pentagon
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Credit: AFP/Getty Images
As the sun sets over the White House passersby stop behind a police barrier at the northern approach to the White House where the national flag flies at half mast and security patrol the presidential mansion 11 September 2001 in Washington, DC. Earlier in the day, two hijacked planes in a coordinated attack destroyed the World Trade Center in New York, while another plane crashed into the Pentagon. AFP PHOTO/Robyn BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
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