The attacks of September 11 , 2001 , brought about many changes in the country . An attack such as this had never before happened and steps had to be taken to ensure it did n't again . Many nations were affected by the attacks . Over 3000 lost their lives from the world including Australia , Bermuda , Canada , China , El Salvador , Germany , Grenada , Ireland , Israel , Japan , Sweden , United Kingdom , United States , and 30 that were listed as UNKNOWN
attacks of September 11
September 11 attacks
Homeland Security Presidential Directive 8