Impact of 9/11: Reshaping U.S. Policy and Global Counterterrorism
The 9/11 attacks led to wars in Afghanistan and Iraq, creation of new security agencies, and expanded surveillance affecting civil liberties, with over 160,000 U.S. troops deployed at peak levels.
- On September 11, 2001, nineteen al-Qaeda terrorists hijacked four planes and killed 2,977 people in attacks on New York, Washington, and Pennsylvania.
- The attacks were the culmination of nearly ten years of preparation masterminded by Osama bin Laden, motivated by extremist Islamist ideology, prompting the U.S. to insist that the Taliban surrender members of al-Qaeda.
- In response, the U.S. launched the Global War on Terror, creating the Department of Homeland Security, the TSA, and military operations in Afghanistan and Iraq under broad congressional authorizations.
- The 9/11 Commission cited intelligence failures and security gaps, while measures like the Patriot Act intensified surveillance amid debates over ethics and costs, with Guantanamo Bay detention costing $500 million yearly.
- These events reshaped U.S. foreign and domestic policy, fueling prolonged conflicts and counterterrorism strategies that continue to impact global alliances, civil liberties, and national security.
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14 Articles

How Tyranny Becomes Entrenched: 9/11 and the Police State’s Endless Power Grabs
“The greatest tyrannies are always perpetuated in the name of the noblest causes.” Thomas Paine They said it was for safety. They said it was for order. They said it was for the good of the nation. They always say it’s for something good… until it isn’t. Nearly a quarter-century after 9/11, we are still …
The United States Is Undoing Post-9/11 Security Architecture
Since 9/11, the United States has invested more than $1 trillion directly into the Department of Homeland Security (DHS), and trillions more dollars into wars fought in the name of counterterrorism, intelligence centers, surveillance, and counter-extremism programs. That money bought a sprawling security architecture that provided safer airports, fusion centers connecting federal and local intelligence, reforms to disaster relief, and new counte…
It was only yesterday: 9/11 and how it changed our world
On one bright Tuesday morning 24 years ago today, our whole world changed. A city reeled. A war unlike any other in American history began. A generation of young adults has a hazy understanding at best of what transpired on Sept. 11, 2001, of the depth of the damage done, of its wider significance. In the service of national memory, this is our attempt to set down what happened on that day and in its aftermath. Nineteen fanatics, acting in the n…
How 9/11 Changed US Foreign Policy and Global Counterterrorism
Get latest articles and stories on World at LatestLY. One of the key changes in US foreign policy is a shift to counterterrorism. The US prioritised counterterrorism, launching the Global War on Terrorism, with military interventions in Afghanistan and Iraq. World News | How 9/11 Changed US Foreign Policy and Global Counterterrorism.
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