Michael Levi comments what the EPA's recent classification of greenhouse gases as a pollutant means for the Copenhagen Conference.

General McChristal talks about the U.S. commitment in Afghanistan.

Listen to Representative Nita Lowey, chair, subcommittee on state, foreign operations, and related programs, House committee on appropriations (D-NY), discuss her views on the U.S. national security apparatus and the balance between civilian and military resources.

Listen to Representative Edward J. Markey, Chair, Select Committee on Energy Independence and Global Warming; Chair, Energy and Environment Subcommittee, Energy and Commerce Committee, U.S. House of Representatives (D-MA), deliver his insight into the interplay between domestic and international action on climate change.

This session was part of a CFR symposium, Countdown to Copenhagen: What's Next for Climate Change?, which was made possible through generous support from the Doris Duke Charitable Foundation, the Alcoa Foundation, and the Robina Foundation.

Listen to Senator John F. Kerry deliver a congressional perspective on U.S. policy and the current situation in Afghanistan as the administration continues to review its strategy in the region.

At a CFR meeting, U.S. Senator John Kerry opposed a major troop increase in Afghanistan, stressing the need for developing the country's security forces and governing capacity.

Watch Makhdoom Shah Mahmood Qureshi, Pakistan's minister of foreign affairs, examine U.S.-Pakistan relations and critical political, economic, and security issues in the region.

Listen as Ashton B. Carter, undersecretary of defense for acquisition, technology, and logistics, outlines the Obama administration’s assessment of defense resources and priorities, and DOD’s shifting relationships with Capitol Hill and the business community.

Watch as Ashton B. Carter, undersecretary of defense for acquisition, technology, and logistics, outlines the Obama administration's assessment of defense resources and priorities, and DOD's shifting relationships with Capitol Hill and the business community.

Listen to the CFR-sponsored Independent Task Force on U.S. Immigration Policy Co-Chairs discuss the report, which concludes that the failure to reform immigration laws and procedures threatens to harm America’s economy, jeopardize its diplomacy, and weaken its national security.

Watch the CFR-sponsored Independent Task Force on U.S. Immigration Policy Co-Chairs discuss the report, which concludes that the failure to reform immigration laws and procedures threatens to harm America's economy, jeopardize its diplomacy, and weaken its national security.

Listen to Representative John M. McHugh provide his insights on the role will Republicans play in shaping future U.S. national security policy.

Watch Representative John M. McHugh provide his insights on the role will Republicans play in shaping future U.S. national security policy.

Stephen Sestanovich discusses the Jackson-Vanik amendment and its role in defining American policy toward the Soviet Union.

Listen to experts for a discussion of foreign policy during President Obama's first 100 days.

Watch experts breakdown U.S. foreign policy during President Obama's first 100 days.

Stephen Sestanovich argues that the president's ability to overhaul the U.S. foreign policy agenda depends heavily on how the administration deals with Congress.

Watch Senator Jim Webb speak about his work in the Senate and his views on U.S. national security strategy.

Listen to Senator Jim Webb speak about his work in the Senate and his views on U.S. national security strategy.