Amb. Rick Barton: A Simple Rule for U.S. Intervention Abroad

At the launch of his new book, "Peace Works: America's Unifying Role in a Turbulent World," Ambassador Rick Barton shared his take on U.S. intervention abroad. --------------------------------------------------------------------- Subscribe to our channel: http://cs.is/2dCfTve CSIS is the world's #1 defense and national security think tank. Visit http://www.csis.org to find more of our work as we bring bipartisan solutions to the world's greatest challenges. Check out the rest of our videos here: http://cs.is/2dolqpj Follow CSIS on Twitter:   / csis   On Facebook:   / csis.org   And on Instagram:   / csis