. >> steve barton. i confess having spent nine months in a u.k. and a chest hospital as a student, -- nhs hospital as a student, seen some of the open wards there. is very different, but that is not my question. at the moment, the dollar is primarily the world's reserve currency, but at the rate we are printing them, that might not last too much longer. what kind of currency might you see as the world's reserve currency if the dollar is dethroned? >> i would like to see a commodity-backed currency. >> you can watch all of the speech, and questions and answers, and our video library. we are leaving this, and taken to a roundtable discussion with a number of mayors from around the country, including tom menino from boston, and kevin johnson from sacramento. live coverage here, on c-span. >> took an emerging, national, nonprofit organization, and oversaw s potential growth and raise and invested more than $3 billion in private capital in inner-city and rural communities nationwide. other points include serving boston's mayor's kevin white and raymond