How Has 9/11 Changed America?

1. How 9/11 Changed Airport Security

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2. How 9/11 Changed American Citizens

2.1. "

3. How 9/11 Changed America's Finances

4. How 9/11 Changed Travel

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5. How 9/11 Changed Population

5.1. "Nearly 2,600 people died at the World Trade Centre, 125 died at the Pentagon and 256 died on the four planes.”