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September 11 Attacks
On September 11, 2001, 19 members of al Qaeda hijacked four passenger airplanes in the United States. Two of the planes were deliberately crashed into New York City's World Trade Center, one was flown into the Pentagon, near Washington, D.C., and ...
- Counterterrorism
- 9/11 Commission
- Airport Security
- Bureau of Alcohol, Tobacco, Firearms and Explosives
- Central Intelligence Agency
- Counterterrorism
- Criminal Prosecution of Terrorists
- Decommissioning in Northern Ireland
- Department of Justice, U.S.
- Federal Bureau of Investigation
- Force 17
- Force Protection Conditions
- Foreign Intelligence Surveillance Act
- Forensic Science and Terrorism
- Grenzschutzgruppe 9
- Guantánamo Bay
- Homeland Security
- Intelligence Gathering
- International Relations and Terrorism
- Interrogation Techniques
- Law and Terrorism
- Mossad
- National Security Agency
- National Security Council
- Operation Eagle Claw
- Patriot Act
- Rehabilitation of Terrorists
- Rendition, Extraordinary
- Rewards for Justice
- Sayeret Matkal
- Special Air Service Regiment
- Special Operations Wing
- Torture Debate
- United Nations
- Culture and Ideology of Terrorism
- Anarchism
- Christian Identity
- Ethnic Cleansing
- Fatwa
- Gender-Based Terrorism
- Homegrown Jihadi Movement
- Media and Terrorism
- New Terrorism, The
- Patriot Movement
- Popular Culture, Terrorism in
- Posse Comitatus
- Religious and Spiritual Perspectives on Terrorism
- Stockholm Syndrome
- Taliban Code of Conduct
- Training of Terrorists
- Turner Diaries, The
- White Supremacy Movement
- Women Terrorists
- Economics, Politics, and the Law
- 9/11 Commission
- Bureau of Alcohol, Tobacco, Firearms and Explosives
- Central Intelligence Agency
- Counterterrorism
- Criminal Prosecution of Terrorists
- Department of Justice, U.S.
- Economics and Terrorism
- Federal Bureau of Investigation
- Financing Terrorism
- Foreign Intelligence Surveillance Act
- Homeland Security
- Insurance and Terrorism
- International Relations and Terrorism
- Law and Terrorism
- National Security Agency
- National Security Council
- Patriot Act
- Rendition, Extraordinary
- Torture Debate
- United Nations
- Groups
- Abu Nidal Organization
- Abu Sayyaf Group
- Aden-Abyan Islamic Army
- al Aqsa Martyrs Brigades
- al Asifa
- al Jihad
- al Muhajiroun
- al Qaeda
- al Qaeda in Iraq
- al Qaeda in the Islamic Maghreb
- al Shabab
- Alex Boncayao Brigade
- Animal Liberation Front
- Ansar al Islam
- Armed Islamic Front
- Armed Islamic Group
- Armenian Secret Army for the Liberation of Armenia
- Army of God
- Aryan Nations
- Aryan Republican Army
- Aum Shinrikyo
- Baader-Meinhof Gang
- Basque Fatherland and Liberty
- Black Panther Party
- Black September
- Chukaku-ha
- Communist Party of Nepal (Maoists)
- Continuity Irish Republican Army
- Covenant, the Sword and the Arm of the Lord, The
- Democratic Front for the Liberation of Palestine
- Democratic Front for the Liberation of Rwanda
- Earth First!
- Earth Liberation Front
- East Turkestan Islamic Movement
- El Rukns
- Evan Mecham Eco-Terrorist International Conspiracy
- FALN
- Farabundo Martí National Liberation Front
- FARC
- Fatah
- First of October Antifascist Resistance Group
- Force 17
- Gama'a al Islamiyya
- German Red Army Faction
- Great Eastern Islamic Raiders’ Front
- Grey Wolves
- Hamas
- Hanafi Muslim Movement
- Harakat ul-Mujahideen
- Hezbollah
- Hizb-ul-Mujahideen
- Irgun Zvai Leumi
- Irish National Liberation Army
- Irish Republican Army
- Islamic Army for the Liberation of Holy Places
- Islamic Movement of Uzbekistan
- Jaish-e-Mohammed
- Jamaat ul Fuqra
- Japanese Red Army
- Jewish Terrorist Groups in the United States
- Justice Department
- Kahane Chai
- Kosovo Liberation Army
- Ku Klux Klan
- Kurdistan Workers’ Party
- Lashkar-e-Taiba
- Lautaro Youth Movement
- Liberation Tigers of Tamil Eelam
- Lord's Resistance Army
- Loyalist Volunteer Force
- Macheteros
- Manuel Rodriquez Patriotic Front
- May 19 Communist Organization
- Morazanist Patriotic Front
- Moro Islamic Liberation Front
- Mujahideen-e-Khalq Organization
- National Liberation Army–Bolivia
- National Liberation Army–Colombia
- National Liberation Front of Corsica
- New People's Army
- Orange Volunteers
- Order, The
- Ordine Nuovo
- Palestine Islamic Jihad
- Palestine Liberation Front–Abu Abbas Faction
- Palestine Liberation Organization
- People Against Gangsterism and Drugs
- People's Revolutionary Army
- Popular Front for the Liberation of Palestine
- Popular Front for the Liberation of Palestine–General Command
- Popular Liberation Army
- Puerto Rican Nationalist Terrorism
- Real Irish Republican Army
- Red Brigades
- Red Hand Defenders
- Revolutionary Organization 17 November
- Revolutionary People's Liberation Party/Front
- Revolutionary United Front
- Shining Path
- Stern Gang
- Symbionese Liberation Army
- Taliban
- Tehrik-i-Taliban Pakistan
- Tupac Amaru Revolutionary Movement
- Tupac Katari Guerrilla Army
- Tupamaros
- Turkish Hezbollah
- Ulster Defense Association
- Ulster Freedom Fighters
- Ulster Volunteer Force
- United Self-Defense Forces of Colombia
- Vigorous Burmese Student Warriors
- Weatherman
- White Patriot Party
- Zetas, Los
- Individuals
- Abbas, Muhammad “Abu”
- Abdel Rahman, Omar
- Abdullah, Abdullah Ahmed
- Adel, Saif al
- Ali, Ahmed Mohamed Hamed
- Anderson, Terry A.
- Arocena, Eduardo
- Asahara, Shoko
- Atef, Muhammad
- Atta, Mohamed
- Atwa, Ali
- Atwah, Muhsin Musa Matwalli
- Awda, Abd al Aziz
- Awlaki, Anwar al
- Ayyash, Yahya
- Baader, Andreas
- Bakunin, Mikhail
- Banna, Sabri al
- Bashir, Abu Bakar
- Berenson, Lori
- bin Laden, Osama
- Boudin, Katherine
- Buckley, William
- Chesimard, Joanne
- Cicippio, Joseph
- Copeland, David
- Coronado, Rodney
- Dohrn, Bernardine
- Dozier, James Lee
- Elbaneh, Jaber A.
- Ellerman, Josh
- Ellison, James
- Fadhil, Mustafa Mohamed
- Fadlallah, Sheikh Mohammad Hussein
- Gadahn, Adam Yahiye
- Ghailani, Ahmed Khalfan
- Goldstein, Baruch
- Griffin, Michael Frederick
- Guevara, Ernesto (Che)
- Habash, George
- Hage, Wadih el
- Hawatmeh, Nayef
- Hearst, Patty
- Hill, Paul Jennings
- Hoorie, Ali Saed bin Ali el
- Hussein, Saddam
- Izz al Din, Hassan
- Jibril, Ahmed
- Kahane, Meir
- Kansi, Mir Aimal
- Khaled, Leila
- Kikumura, Yu
- Kilburn, Peter
- Kropotkin, Peter
- Liby, Anas al
- Lindh, John Walker
- Marighella, Carlos
- Marzook, Mousa Mohammed Abu
- Masri, Abu Ayyub al
- Mathews, Robert Jay
- McVeigh, Timothy James
- Meinhof, Ulrike
- Metesky, George
- Miller, Frazier Glenn
- Mohamed, Khalfan Khamis
- Mohammed, Fazul Abdullah
- Mohammed, Khalid Shaikh
- Moussaoui, Zacarias
- Msalam, Fahid Mohammed Ally
- Mughassil, Ahmad Ibrahim al
- Mugniyah, Imad Fayez
- Nasrallah, Sheikh Hassan
- Nasser, Abdelkarim Hussein Mohamed al
- Nichols, Terry Lynn
- Nosair, El Sayyid
- Ocalan, Abdullah
- Odeh, Mohammed Saddiq
- Owhali, Mohamed Rashed al
- Padilla, José
- Pearl, Daniel
- Qaddafi, Muammar el
- Rajneesh, Bhagwan Shree
- Reid, Richard
- Ressam, Ahmed
- Reynoso, Abimael Guzmán
- Rudolph, Eric
- Sánchez, Ilich Ramírez
- San Diego, Daniel Andreas
- Scutari, Richard
- Shallah, Ramadan Abdullah
- Shigenobu, Fusako
- Snell, Richard Wayne
- Steen, Alann
- Sutherland, Thomas
- Swedan, Sheikh Ahmed Salim
- Waite, Terry
- Yacoub, Ibrahim Salih Mohammed al
- Yasin, Abdul Rahman
- Younis, Fawaz
- Yousef, Ramzi Ahmed
- Zarqawi, Abu Musab al
- Zawahiri, Ayman al
- Zubaydah, Abu
- Types and Methods of Terrorism
- Agricultural Terrorism
- Anthrax
- Anti-Abortion Terrorism
- Asymmetrical Warfare
- Biological Terrorism
- Bombings and Bomb Scares
- Chemical Terrorism
- Cyberterrorism
- Death Squads
- Ecoterrorism
- Ethnic Cleansing
- Freelance Terrorism
- Hijacking
- Homegrown Jihadi Movement
- Hostage Taking
- Kneecapping
- Leaderless Resistance
- Lone-Wolf Terrorism
- Lynching
- Narcoterrorism
- Nuclear Terrorism
- State Terrorism
- State-Sponsored Terrorism
- Suicide Terrorism
- Weapons of Mass Destruction
- Regional Categories
- Africa: Eastern, Central, and Southern
- Africa: Northern
- Americas: Central and South America
- Farabundo Martí National Liberation Front
- FARC
- Lautaro Youth Movement
- Manuel Rodriquez Patriotic Front
- Morazanist Patriotic Front
- Movement of the Revolutionary Left
- National Liberation Army–Bolivia
- National Liberation Army–Colombia
- People's Revolutionary Army
- Popular Liberation Army
- Shining Path
- Tupac Amaru Revolutionary Movement
- Tupac Katari Guerrilla Army
- Tupamaros
- United Self-Defense Forces of Colombia
- Americas: North America
- 9/11 Commission
- Animal Liberation Front
- Anti-Abortion Terrorism
- Army of God
- Aryan Nations
- Aryan Republican Army
- Black Panther Party
- Branch Davidian Compound Siege
- Brooklyn Bridge Shooting
- Centennial Park Bombing
- Covenant, the Sword and the Arm of the Lord, The
- Earth First!
- Earth Liberation Front
- El Rukns
- Empire State Building Shooting
- Evan Mecham Eco-Terrorist International Conspiracy
- FALN
- Fort Smith, Arkansas, Trial
- Fraunces Tavern Bombing
- Grand Central Station Bombing
- Hanafi Muslim Movement
- Homegrown Jihadi Movement
- Jewish Terrorist Groups in the United States
- Ku Klux Klan
- LaGuardia Airport Bombing
- Macheteros
- May 19 Communist Organization
- Oklahoma City Bombing
- Order, The
- Puerto Rican Nationalist Terrorism
- September 11 Attacks
- Sixteenth Street Baptist Church Bombing
- Statue of Liberty Bombing
- Subway Suicide Bombing Plot
- Symbionese Liberation Army
- TWA Flight 355 Hijacking
- Wall Street Bombing
- Weatherman
- White Patriot Party
- World Trade Center Bombing (1993)
- Y2K Plot
- Zetas, Los
- Asia: East and Southeast
- Asia: South and Central
- Afghan Arabs
- Afghanistan War
- Air India Flight 182 Bombing
- Eastern Turkestan Islamic Movement
- Harakat ul-Mujahideen
- Hizb-ul-Mujahideen
- Islamic Movement of Uzbekistan
- Jaish-e-Mohammed
- Jamaat ul Fuqra
- Kurdistan Workers’ Party
- Lashkar-e-Taiba
- Mumbai Attack, 2008
- Pan Am Flight 73 Hijacking
- Popular Front for the Liberation of Palestine
- Popular Front for the Liberation of Palestine–General Command
- Sikh Terrorism
- Taliban
- Tehrik-i-Taliban Pakistan
- Turkish Hezbollah
- Europe
- Animal Liberation Front
- Armenian Secret Army for the Liberation of Armenia
- Basque Fatherland and Liberty
- Basque Separatists
- Birmingham Pub Bombing
- Bloody Sunday
- Canary Wharf Bombing
- Chechen Terrorism
- Continuity Irish Republican Army
- Decommissioning in Northern Ireland
- Earth Liberation Front
- First of October Antifascist Resistance Group
- German Red Army Faction
- Great Eastern Islamic Raiders’ Front
- Grey Wolves
- Homegrown Jihadi Movement
- Irish National Liberation Army
- Irish Republican Army
- Islamic Army for the Liberation of Holy Places
- Justice Department
- Kosovo Liberation Army
- La Belle Discotheque Bombing
- London Underground Bombings
- Loyalist Volunteer Force
- Madrid Bombings
- Munich Olympics Massacre
- National Liberation Front of Corsica
- Omagh Bombing
- Orange Volunteers
- Ordine Nuovo
- Pan Am Flight 103 Bombing
- Real Irish Republican Army
- Red Brigades
- Red Hand Defenders
- Revolutionary Organization 17 November
- Revolutionary People's Liberation Party/Front
- Ulster Defense Association
- Ulster Freedom Fighters
- Ulster Volunteer Force
- USO Club Bombing
- Middle East: Arabian Peninsula and Persian Gulf States
- Middle East: The Levant
- Achille Lauro Hijacking
- al Aqsa Martyrs Brigades
- al Asifa
- Black September
- Democratic Front for the Liberation of Palestine
- Fatah
- Force 17
- Hamas
- Hezbollah
- Intifada
- Irgun Zvai Leumi
- Kahane Chai
- King David Hotel Bombing
- Mossad
- Palestine Islamic Jihad
- Palestine Liberation Front–Abu Abbas Faction
- Palestine Liberation Organization
- Popular Front for the Liberation of Palestine
- Popular Front for the Liberation of Palestine–General Command
- Sayeret Matkal
- Stern Gang
- TWA Flight 840 Hijacking
- U.S. Embassy Bombing, Beirut
- U.S. Marine Barracks Bombing, Beirut
- Wrath of God
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