During the September 11 attacks of 2001, 2,977 people were killed (excluding the 19 hijackers) and more than 6,000 others were injured.[1][2] The immediate deaths included 265 on the four planes (including the terrorists), 2,606 in the World Trade Center and in the surrounding area, and 125 at the Pentagon.[3][4] The attacks were the deadliest terrorist act in world history, and the most devastating foreign attack on United States soil since the attack on Pearl Harbor on December 7, 1941.[5]