i would like to welcome back leslie staal, our moderator. prior to joining "60 minutes," she served as cbs news white house correspondent and was a moderator on "face the nation" and co-anchor of "america tonight." i would also like to recognize our blogger this evening, another inspired idea from harrold newman, david andleman and thank him for joining us. before we begin, please make sure that anything electronic that might make a noise is switched off. and please joining me in welcoming our guests. thank you. [ applause ] >> hello, everyone. if you want to know about the cold war, this is the panel to tell us. and i myself can't wait to hear them disagree with each other. it's going to be the goal. so i'm just going to plunge right in and i'm going to start with richard reeves at the end and ask him whether he thinks that ronald reagan was the reason the cold war ended. if not ronald reagan, do you think it was gorbachev. and if neither one of them, do you think that the soviet union just imploded from its own dilapidated weight? >> that