After the terror attacks on 9/11, a public opinion survey by the Chicago Council on Global Affairs showed widespread support for increased spending on national security and counterterrorism. A decade later, a new survey shows that "Americans have become increasingly selective about how and where to engage in the world." Jane Harman and Robert Kagan of the Brookings Institution, spoke with listeners about the results of the 2012 survey on NPR's Talk of the Nation.