Answer:
Eighteen years ago, the United States wasn't officially engaged in any wars. Few of us had ever heard of al-Qaeda or Osama bin Laden, and ISIS didn't even exist.
We deported half the number of people we do today. Our surveillance state was a fraction of its current size. And -- perhaps hardest to believe -- we didn't have to take off our shoes to go through airport security.
America’s involvement in the War on Terror -- prompted by the 9/11 terrorist attacks -- resulted in a dramatic change in our nation's attitudes and concerns about safety, vigilance and privacy.
It ushered in a new generation of policies like the USA Patriot Act, prioritizing national security and defense, often at the expense of civil liberties.
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Lasting impacts of 9/11 lesson plan
These changes continue to have ripple effects across the globe, particularly in the Middle East, where American-led military operations helped foment rebellions and ongoing warfare throughout the region.
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