Watch U.S. Department of Homeland Security Secretary Michael Chertoff reflect on government actions during crises and lessons learned from his time in the Bush administration.

LAURIE GARRETT: If people could please take their seats. Broadcast audience, we'll be starting momentarily. Good morning, I'm Laurie Garrett, here as a senior fellow at Council on Foreign Relat…

Watch experts discuss the U.S. foreign policy implications of a global pandemic including access to vaccinations and effects on trade. This session was part of a CFR symposium, Pandemic Influenza: S…

President Obama has called for the eventual global abolition of nuclear weapons, but they will remain a fundamental element of U.S. national security in the near term. The CFR Task Force report makes…

Deputy Secretary of Defense William Lynn discusses the various new strategies used by the Pentagon to identify information technology threats, combat cyber warfare, and protect U.S. infrastructure.