eastern, united states holocaust memorial museum director sarah bloomfield and alice green wald in new york city talk about the creation and message behind both museums. >> but why would you build it in washington? doesn't it belong in jerusalem? so we tried to build the exhibitions to try to answer that question. so the first part is hearing from that american g.i. who asked that big question which is how is it that human beings can do this to one another. and then throughout the exhibition we keep bringing back what america knew an when america knew it. >> the centennial of america's entry into the great war from the national world war i museum from the museum in kansas city, missouri. and how the founders viewed education, slavery and purr veered in the heart of it. >> john adams was the only one who never owned a slave. out of principle. not becauseer couldn't necessarily afford one but out of principle. and abigail's feelings about it were even more strongly voiced than his. >> and then at 8:00 on the presidency, university of virginia presidential scholar barbara perrey talks abo