Domestic Terrorism

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Domestic terrorism involves violence against the civilian population or infrastructure of a nation—often but not always by citizens of that nation and often with the intent to intimidate, coerce, or influence national policy. RAND addresses national security and critical infrastructure needs through objective research that helps government agencies prevent and mitigate terrorist activities and improves disaster preparedness, response, and recovery.

Explore Domestic Terrorism

  • U.S. Defense Secretary Ash Carter stands with Col. Otto Liller as he is greeted by Iraqi Major General Falah al Mohamedawi (L) at the Iraqi Counter Terrorism Service Academy in Baghdad, July 23, 2015

    Commentary

    Solving the Geometrical Problem of Terrorism

    Think of terror organizations as being composed of four elements, organized in concentric circles with the leaders at the center bull's eye, operational elements in the second ring, supporters in the third, and sympathizers in the fourth. Neutralizing each group will require different strategies.

    Jan 13, 2016

  • Flowers and candles are displayed at a makeshift memorial after the December 2, 2015 shooting in San Bernardino, California

    Commentary

    How Terrorists Get Here

    Of 134 jihadist-inspired terrorists who have carried out or plotted attacks in the United States since 9/11, 96 were U.S. citizens and 19 others were legal permanent residents. While some level of comfort may be drawn from the fact that terrorists are not pouring into the country, there is no basis for complacency.

    Dec 18, 2015

  • Politics, US , Politics

    Testimony

    Jihadist Conspirators in the United States

    A review of how terrorists arrived in the United States in the past can help the government prioritize its efforts and resources. But it may not be a reliable indicator of how terrorist organizations could attempt to bring violence to America in the future.

    Dec 10, 2015

  • President Barack Obama speaks about counterterrorism and the U.S. fight against the Islamic State, December 6, 2015

    Commentary

    If Terrorism Is Homegrown, a Visa Overhaul Won't Keep Americans Safe

    Despite being the focus of renewed scrutiny, only three people involved in terrorist incidents have entered the United States via the visa waiver program in the past quarter-century.

    Dec 7, 2015

  • A tank of the Syrian National Army in the outskirts of Damascus on September 21, 2013

    Testimony

    The Dynamics of the Conflicts in Syria and Iraq and the Threat Posed by Homegrown Terrorists and Returning Western Fighters

    The fighting in Iraq and Syria is likely to continue. How will the dynamics of these conflicts shape the region and events beyond? And what threat do Westerners who've joined jihadists on these battlefields and homegrown terrorists pose to the U.S. homeland?

    Nov 18, 2015

  • Candles in the French national colours are placed near the Bataclan concert hall the morning after a series of deadly attacks in Paris, November 14, 2015

    Commentary

    Big Questions Facing France

    In Paris, the heavily armed terrorists reportedly struck at six locations, including restaurants, a football stadium, and a theater during a rock concert. It seems clear the killers must have had some confederates. That would mean some terrorists are still at large.

    Nov 14, 2015

  • U.S. Army Specialist visits his former high school as part of the Army Special Recruiter Assistance Program

    Commentary

    Go Slow on Arming Recruiters

    Several important voices have argued for arming military recruiters in the wake of the recent shootings in Chattanooga, Tennessee. Giving them a chance to fight back against an active shooter may be a sound proposition, but practicalities of military recruiting suggest a patient and thoughtful policy review.

    Jul 31, 2015

  • A Syrian refugee shows his passport after he and others were rescued by a Greek coast guard patrol boat, May 29, 2015

    Testimony

    Admitting Syrian Refugees: The Intelligence Void and the Emerging Homeland Security Threat

    The deeply intertwined wars in Syria and Iraq continue to impact U.S. national security. Based on threats posed by a number of terrorist groups in the region, it's important to examine potential risks from increased refugee flows and ensure that the U.S. refugee program safeguards national security.

    Jun 24, 2015

  • Testimony

    There Will Be Battles in the Heart of Your Abode: The Threat Posed by Foreign Fighters Returning From Syria and Iraq: Addendum

    Document submitted on April 17, 2015 as an addendum to testimony presented before the Senate Homeland Security and Governmental Affairs Committee on March 12, 2015.

    Apr 17, 2015

  • A damaged picture of Syrian president Bashar al-Assad in Idlib, March 28, 2015

    Commentary

    Syria and Iraq: Inside the Terrorist Factory

    As the civil wars in Syria and Iraq continue, they sharpen the sectarian divide between Sunnis and Shias, threatening the stability of the region and attracting a steady flow of foreign volunteers, effectively turning Syria and Iraq into a terrorist factory.

    Mar 30, 2015

  • Spanish police arresting a woman suspected of recruiting women to go to Syria and Iraq to support Islamic State insurgents

    Commentary

    The Allure of ISIS for Young Recruits

    Poverty and oppression may explain why people in some countries embrace violent extremism, but it does not account for the flow of Western volunteers or the dreamy allure of fighting for a faraway cause. Biographies of those who have reached out to participate in jihad suggest a variety of motives, including alienation, personal crises, dissatisfaction with empty spiritual lives, and adolescent rebellion.

    Mar 20, 2015

  • Testimony

    Containing Middle East Terror: Measures to Reduce the Threat Posed By Foreign Fighters Returning from Syria and Iraq

    Testimony presented before the House Homeland Security Committee, Subcommittee on Border and Maritime Security on March 17, 2015.

    Mar 17, 2015

  • Militant Islamist fighters ride horses in a military parade along the streets of Syria's northern Raqqa province, June 30, 2014

    Testimony

    The Threat Posed by Foreign Fighters Returning from Syria and Iraq

    An estimated 3,400 foreign fighters have come from Europe and other Western countries to join jihadist fronts in Syria and Iraq. What is the threat posed by these Western fighters? And how can the U.S. better identify and intercept returning foreign fighters from countries covered by the Visa Waiver Program?

    Mar 12, 2015

  • Periodical

    RAND Review: March-April 2015

    This issue of RAND Review reports on American jihadists and the threat of homegrown terrorism in Europe, drug-resistant superbugs and the economic costs of antimicrobial resistance, profiling, resilient cities, and recent philanthropic gifts to RAND.

    Mar 4, 2015

  • French special intervention police conduct a house-to-house search in Longpont, northeast of Paris, January 8, 2015

    Commentary

    Different Countries, Different Ways of Countering Terrorism

    France and the United States follow different approaches in dealing with terrorist suspects. This divergence reflects differences in the threat, historical experience, law, available resources, and public attitudes. France faces a more serious terrorist threat than the U.S. does.

    Mar 2, 2015

  • The new issue of satirical French weekly Charlie Hebdo titled 'C'est Reparti' ('Here we go again') in Nice, February 25, 2015

    Commentary

    Predicting the 'Dangerousness' of Potential Terrorists

    Predicting 'dangerousness' of potential terrorists is a hit-and-miss endeavor. Unless someone is waving a gun, it is extremely difficult. Even with direct access to the subject, parole boards, suicide prevention units, and even trained clinicians get it wrong.

    Mar 2, 2015

  • Houses that Faisal Shahzad and Sinh Vinh Ngo Nguyen lived in before they please guilty to terrorism charges.

    Essay

    Enemies Among Us: What We Know About Homegrown Terrorists

    Dozens of young Americans have attempted to join overseas jihadist groups in the past several years, raising special concern among counterterrorism officials that they might bring the fight home with them when they return.

    Feb 26, 2015

  • A Paris crowd displaying the portraits of five of the people killed during the attack at Charlie Hebdo on January 7, 2015

    Commentary

    Attempting to Understand the Paris Attacks

    The investigation will eventually fill in some of the gaps in our knowledge of the events leading up to the attacks in Paris, but some questions will remain unanswered. Embedded in the unknowns are some of the chronic dilemmas faced by counterterrorist authorities everywhere.

    Feb 26, 2015

  • A masked man speaking in what is believed to be a North American accent in a video that Islamic State militants released in September

    Report

    When Jihadis Come Marching Home

    Although the numbers of Westerners slipping off to join the jihadist fronts in Syria and Iraq are murky, U.S. counterterrorism officials believe that those fighters pose a clear and present danger to American security.

    Feb 16, 2015

  • A K-9 police unit keeps watch as passengers make their way through Ronald Reagan Washington National Airport

    Commentary

    Improving Domestic Security to Combat Today's Terrorist Threats

    Today, the U.S. confronts a multilayered terrorist threat and the recent spate of attacks in Europe underscores the necessity for ensuring that intelligence keeps up with it. Intelligence services must continue to prevent terrorist assaults dispatched from abroad, head off new shoe and underwear bombers, intercept individuals returning from jihadist fronts with terrorist intentions, while at the same time uncovering and thwarting homegrown plots.

    Jan 30, 2015