9/11 Changes America’s Security Posture
The terrorist attacks on September 11, 2001, killed nearly 3,000 people and shattered America’s sense of security. The government created the Department of Homeland Security and passed the Patriot Act. Two wars followed in Afghanistan and Iraq. Airport security procedures changed permanently. Americans debated the balance between safety and civil liberties. The attacks altered foreign policy priorities and reshaped how Americans viewed threats to national security.
