Best-selling author Robert D. Kaplan has crisscrossed the globe for decades covering civil wars and collapsing states. Looking forward as well as back, he judiciously outlines the timeless principles that he believes should shape America's role in a turbulent world. In this clip, Kaplan describes America’s current role as a function of the immense power of the U.S. Navy. This provides great value to other nations as the United States protects the free flow of trade and is, in essence, America’s brand. But what happens if the value of the brand deteriorates?