eastern, united take holocaust memorial museum director and alex greenwald, president and ceo of the national september 11 memorial and museum in new york city talk about the creation and message behind both museums. >> why would you build it in washington, people ask? jerusalem?along in the first part of your museum experiences hearing from that american gi who asked that they questioned who asked it -- you asked, why -- how is it that human beings can do this to one another and during the exhibition we bring it back to what american and win america knew it. at 2:00, political prize -- a pulitzer prize winner -- >> the first seven president of the united states, john adams was the only one who never owned a slave. principle, not because he couldn't necessarily afford them, but out of principle and abigail's feelings about it were even more strongly voiced than his. at 8:00 on the presidency, university of virginia presidential scholar barbara perry talks about the traits of a great president. >> the sign of a good leader is a leader who is self-confident, but not arrogant. so confid