25 Years After 9/11, a World Reshaped by the Attacks
The wars and security measures that followed the attacks killed millions, displaced tens of millions and expanded U.S. surveillance and detention powers.
- Today marks the 25th anniversary of the September 11, 2001 attacks, an event that transformed aviation, initiated two decades of conflict, and fundamentally reshaped how the United States approaches global politics and domestic security.
- Following the attacks, the Transportation Security Administration was created in 2001, shifting aviation security responsibility from airlines to federal control and introducing stringent screening measures including checked baggage inspection.
- The Costs of War project at Brown University's Watson School of International and Public Affairs estimates post-9/11 conflicts in Afghanistan and Iraq caused 4.5–4.7 million deaths, including indirect fatalities, while costing about $8 trillion.
- Suman Raghunathan, an immigrant rights advocate, notes that post-9/11 backlash fostered racial profiling and suspicion toward Muslim, South Asian, and Sikh communities, influencing current immigration enforcement and safety perceptions.
- Defense Secretary Esper argues the United States lost its strategic edge against China due to decades of counterterrorism focus, describing the nation as an existential threat to American life and way of life.
16 Articles
16 Articles
25 Years After 9/11: How the Attacks Defined Every President Since
On that fateful day 25 years ago today, when Islamic terrorists used hijacked commercial airliners to strike at the heart of Western civilization and kill thousands, the skyline of New York City and America’s soul changed forever.
9/11 has had a lasting effect on world affairs
Reflecting on twenty-five years since the Sept. 11 attacks, Stuart Gottlieb examines how the tragedy reshaped American foreign policy, shifted focus toward non-state actors, redefined terrorism as warfare, and emphasized the need for a long-term battle of ideas.
25 years after the attacks of September 11, 2001, their aftermath continues to affect global politics, security and conflicts from the Middle East to South Asia. The attacks, carried out by 19 al-Qaeda hijackers with four passenger jets, killed 2,977 people in New York, the Pentagon and near Shanksville, Pennsylvania Wani. They fueled the US-led “war on terror,” the invasion of Afghanistan, the creation of new security institutions, Guantanamo, …
How 9/11 reshaped America and the world
September 11, 2001 was a day that forever changed America… and the world. It reordered domestic politics, reshaped how Americans thought about national security, and how the United States wielded its enormous power around the world. Former Defense Secretary Mark Esper joins Ian Bremmer on GZERO World on the 25th anniversary of 9/11 to reflect on the immediate shock of the attacks and their lasting impact on American society and foreign policy. H…
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