It's tempting to see the 9/11 attacks as having fundamentally changed U.S. foreign policy. It's also wrong.

This CFR Issue Guide provides expert analysis and essential background on the central questions facing U.S. policymakers ten years after the September 11 terrorist attacks.

Laurie Garrett discusses the FRONTLINE documentary, "The Anthrax Letters."

Richard N. Haass says that the war in Afghanistan began ten years ago as a narrow, modest war of necessity but has evolved into a broad, ambitious war of choice.

Laurie Garrett discusses the tenth anniversary of the post-9/11 anthrax mailings.

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.

Leslie H. Gelb argues that after 9/11, a decade of prolonged wars, economic weakness, and political irresponsibility is not an aberration but a historical pattern for America, and it also reveals a flawed tendency in U.S. foreign affairs.

Linda Robinson discusses new attributes that have characterized Special Operations Forces (SOF) operations since 9/11 and their consequences or implications for the future.

A panel of experts discuss the new HBO documentary film, Manhunt, which details the hunt for Osama bin Laden.

CFR's Stuart A. Levey discusses what the United States has learned in the ten years since the 9/11 terrorist attacks with students.

Experts examine the strategic and tactical policies of the United States in regards to homeland security.

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.

Philip Zelikow, former executive director of the 9/11 Commission Report, explores the findings of the report and presses the need to hold trials for the 9/11 conspirators.

Which policies have worked and which ones need work ten years after the worst terrorist attacks in U.S. history? CFR experts examine ten issues that have preoccupied U.S. planners.

While we can contain terrorism, we can't afford the costs of trying to eliminate it and will have to learn how to live with the chronic threat of low-level attacks, says CFR's Stephen Biddle.

While U.S. efforts to forge a better relationship with the Muslim world are important, it will also take leadership within that world to challenge the myths that lead to anger and disapproval toward the United States.

The tightening of U.S. border and immigration policy since the 9/11 attacks has been far too sweeping, turning away the kind of visitors who have strengthened the country, writes CFR's Edward Alden.

The payoff of huge investments in security precautions mean better intelligence collection, surveillance, and other security infrastructure that combine to make the likelihood of an al-Qaeda attack today very slim.

A near absence of terrorist incidents in the United States since 9/11 points to the success of the Bush administration's counterterrorism measures that once stirred controversy but now have bipartisan acceptance, writes CFR's Max Boot

U.S. homeland security is unquestionably safer a decade after 9/11 and will remain so if the country pursues a robust, yet proportional, counterterrorism effort abroad, writes CFR's Richard Falkenrath.