Richard Lawless, a Pentagon official, recently said China had developed a "very sophisticated" ability to attack American computer and Internet systems.

五角大楼官员理查德·劳里斯最近称，中国练就了袭击美国网络系统的“高明”本领。

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Mike Walter is a veteran news reporter who covered the 9/11 attack on the Pentagon and was haunted by nightmares afterwards.

VOA: standard.2010.07.01

Before leaving the Pentagon, General Xu laid a wreath at the memorial to the 184 people killed in the attack on the building on September 11,2001.

VOA: standard.2009.10.27

As New York began accepting applications for death certificates from relatives of the people reported missing in the World Trade Center attack, military officials continued to release identities of those who died in the Pentagon attack.

CNN: Recovery: More layoffs in the air

While U.S. officials at the State Department and the Pentagon said the attack was a violation of the armistice that ended the fighting between the North and South in a stalemate in 1953, Crowley and the Pentagon's spokesman said it did not appear that North Korea intends a renewal of war.

CNN: China key to restraining North Korea, U.S. officials say

The attack on the Pentagon took out 70% of the U.S. Navy's technological infrastructure there.

FORBES: Scare Tactics