John O. Brennan, Assistant to the President for Homeland Security and Counterterrorism, gave these remarks at Harvard Law School on September 16, 2011.

Recent Taliban attacks in Kabul have undermined Afghan confidence in local security forces and cast new doubt on a sustainable transition from U.S.-led efforts, analysts say.

Experts discuss how changes to U.S. domestic and international policy since September 11, 2011 have enhanced counterterrorism approaches and contributed to preventing planned terrorist attacks.

This session was part of a CFR symposium, 9/11: Ten Years Later, which was made possible by the generous support of Shelby Cullom and Kathryn W. Davis.

Experts discuss how changes to U.S. domestic and international policy since September 11, 2011 have enhanced counterterrorism approaches and contributed to preventing planned terrorist attacks.

This session was part of a CFR symposium, 9/11: Ten Years Later, which was made possible by the generous support of Shelby Cullom and Kathryn W. Davis.

President Obama issued this executive order on September 9, 2011. Among its provisions, it calls for a new body, the Center for Strategic Counterterrorism Communications, to "coordinate, orient, and inform Government-wide public communications activities directed at audiences abroad and targeted against violent extremists and terrorist organizations, especially al-Qa'ida and its affiliates and adherents, with the goal of using communication tools to reduce radicalization by terrorists and extremist violence and terrorism that threaten the interests and national security of the United States."

John Campbell says diplomacy and democracy--not firepower--is the best way to undermine Nigeria's growing Islamist threat.

Secretary of State Hillary Clinton gave these remarks on counterterrorism at John Jay School of Criminal Justice in New York on September 9, 2011.

The White House released this fact sheet on the Global Counterterrorism Forum on September 9, 2011.

Barry Pavel and Matthew Kroenig argue that while a deterrence approach holds great potential for helping to thwart future al Qaeda attacks, it remains a poorly understood and underutilized element of U.S. counterterrorism strategy.

Ed Husain says that a decade after the 9/11 attacks on the United States, the need for Islam to come to terms with modernity is greater than ever.

This video is part of a special Council on Foreign Relations series that explores how 9/11 changed international relations and U.S. foreign policy. In this video, James M. Lindsay, Senior Vice President, Director of Studies, and Maurice R. Greenberg Chair at the Council on Foreign Relations traces the shifts in the balance of power in American politics following the terrorist attacks of Sept. 11, 2001. "What we witnessed in the months after the attack was a political dynamic as old as the American republic. When the country feels imperiled, the White House gains in power and Congress loses it," says Lindsay. However, ten years after the attacks, "the era of terrorism has given way to the era of fiscal austerity," Lindsay argues, and "we now have American politics that looks more normal, that is much more focused inward, and features much more heated battles between Capitol Hill and the White House."

As Washington and Kabul work toward a security arrangement post-2014, President Karzai's aide Taj Ayubi says Washington's wariness over signing a binding agreement have led to Afghan concerns over the long-term U.S. commitment to the country.

James Dobbins and James J. Shinn, coauthors of Afghan Peace Talks: A Primer, discuss the relationships between al-Qaeda, the Taliban, Afghanistan, and Pakistan, as well as the obstacles and possible outcomes of peace negotiations.

Paul Twomey, former president and CEO of the Internet Corporation for Assigned Names and Numbers (ICANN), discusses the challenges posed by the present state of global cyber instability for governance at both the corporate and internatinoal levels.

Pakistan's arrest of senior al-Qaeda leaders signals renewed cooperation with the United States. But experts stress both sides have to work harder to tackle issues such as Pakistan's relations with militant groups and U.S. objectives in Afghanistan.

James Dobbins and James J. Shinn, coauthors of Afghan Peace Talks: A Primer, discuss the relationships between al-Qaeda, the Taliban, Afghanistan, and Pakistan, as well as the obstacles and possible outcomes of peace negotiations.

An interactive multimedia feature that maps out and evaluates multilateral efforts to address some of the most difficult international issues.

The CIA has expanded its focus to include more paramilitary missions rather than intelligence collection, write Greg Miller and Julie Tate of The Washington Post.

The latest national survey by the Pew Research Center for the People & the Press indicates that the American public generally views the government's response to terrorism favorably, yet fewer than half of those surveyed  believe that government policies have prevented another major attack on the United States.

Within days of the 9/11 attacks, Congress authorized U.S. military and intelligence agencies to kill and detain terrorists. It is time to revise that authority on matters like detentions and drone attacks, says CFR's John B. Bellinger III.