. >> announcer: funding is provided by -- anne gumowitz, encouraging the renewal of democracy. carnegie corporation of new york, celebrating 100 years of philanthropy, and committed to doing real and permanent good in the world. the ford foundation, working with visionaries on the front lines of social change worldwide. the herb alpert foundation, supporting organizations whose mission is to promote compassion and creativity in our society. the john d. and catherine t. macarthur foundation, committed to building a more just, verdant, and peaceful world. more information at macfound.org. park foundation, dedicated to heightening public awareness of critical issues. the kohlberg foundation. barbara g. fleischman. and by our sole corporate sponsor, mutual of america, designing customized individual and group retirement products. that's why we're your retirement company. >> welcome. if you've read the espionage novels of john le carrÉ, you know that no other writer today has so brilliantly evoked the subterranean workings of government, perhaps because he himself was once a british

. >> announcer: funding is provided by -- anne gumowitz, encouraging the renewal of democracy. carnegie corporation of new york, celebrating 100 years of philanthropy, and committed to doing real and permanent good in the world. the ford foundation, working with visionaries on the front lines of social change worldwide. the herb alpert foundation, supporting organizations whose mission is to promote compassion and creativity in our society.