Terrorism by the Numbers

What the numbers behind terrorism—and the process of getting to them—reveal.

263 government organizations

were created or reorganized following 9/11.

Source: Washington Post

TIMELINE 1903-2015

U.S. Counterterrorism Since 1945

The history of counterterrorism in the United States is more than a list of policies. It shows how the definition of terrorism and the agencies and tools used to pursue those who commit it have evolved over time.

40 percent

of the public says that the ability of terrorists to launch another major attack on the United States is greater than it was at the time of the 9/11 attacks.

Source: Pew Research Center

How Terrorism Affects You

The following articles explore the effects of terrorism on individuals, communities, and societies.

More From CFR

    From Tragedy to Prevention: Lessons Learned From Terrorist Attacks

    Experts discuss recent terrorist attacks across Europe and how they might shape future counterterrorism efforts.

    Photo: Darren Staples/Reuters

    Women Are Critical to Counterterrorism

    Experts argue that efforts to detect radicalization, challenge extremist narratives, and stop terrorist threats are more successful with women involved.

    Photo: Christopher Herwig/Reuters

    The Taliban

    A multimedia overview spanning the group’s rise in the 1990s to its enduring insurgency against U.S. and allied forces.

    Photo: Reuters