Watch Senator John Kerry (D-MA) discuss climate change as a U.S. national security threat and the opportunity for the United States to pursue global leadership on the issue.

RICHARD SALOMON:  Good afternoon.  Can I get your attention, please?  It's a pleasure for me to welcome Senator Kerry and all of you to today's program at the Council on Foreign Relations.Before I i…

Experts address steps the U.S. federal government can take to bolster economic competitiveness in international markets and to incentivize businesses to invest more in the United States.