The United States After 9/11: 7 Ways America Has Changed Since 2001 At 15-Year Anniversary

9/11 is the reason you have to take your shoes off when going through airport security. Shortly after the attacks, the federal government created the Transportation Security Administration (TSA) and, on Nov. 19, 2001, Congress passed the Aviation and Transportation Security.more:  ibtimes . aslo read: 15 years after Sept. 11: How the unity we forged broke apart