September 11, 2001 Attacks and Historical Impact

Vocabulary flashcards defined according to the transcript covering key terms, historical figures, organizations, and legal changes surrounding the September 11, 2001 attacks.

Terrorism

The use of violence or the threat of violence against civilians, generally motivated by political, religious, or ideological beliefs aimed at creating a general climate of fear.

Oklahoma City Bombing (1995)

The deadliest act of terrorism in the United States prior to 2001, carried out when two American citizens detonated a bomb in front of a public building.

Osama bin Laden

A religious extremist who believed violence was an acceptable method to spread and impose his beliefs; he co-founded Al-Qaeda and masterminded the September 11 attacks.

Al-Qaeda

An organization founded in 1988 with the goal of forcing the United States to withdraw its presence from Middle Eastern countries, allowing its political and religious beliefs to take power.

Twin Towers

Two 110-story skyscrapers in New York City that formed part of the World Trade Center and were destroyed during the September 11, 2001 attacks.

First Responders

Firefighters, paramedics, and other rescue workers who rushed toward the attack sites on September 11, 2001, hundreds of whom lost their lives trying to save others.

The Pentagon

The headquarters of the United States military in Washington, D.C., which was hit by the third hijacked plane during the September 11 attacks.

United States Capitol

The intended target for the fourth hijacked plane on September 11, 2001, before passengers fought back to neutralize the hijackers, causing the plane to crash in Pennsylvania.

Operation Enduring Freedom

A U.S. military operation launched less than a month after September 11, 2001, involving airstrikes and combat missions targeting Al-Qaeda and the Taliban in Afghanistan.

Taliban

A political group in Afghanistan that provided support and refuge to members of Al-Qaeda.

Navy SEALs

The specialized U.S. military unit that located and killed Osama bin Laden in 2011.

Department of Homeland Security

A U.S. government department established after September 11, 2001, to expand governmental powers and enhance domestic security.

Transportation Security Administration (TSA)

A U.S. government organization created after the September 11 attacks to enforce heightened travel security measures.

Patriot Act

Legislation passed after September 11, 2001, that significantly increased government surveillance powers, key parts of which were later ruled unconstitutional for violating civil liberties.