Captioning performed by vitac as a service to the washington community. Details on how to donate and details on future programming are on the back of the flier that was available outside. Let me also thank a couple of individuals who behind the scenes kind of put this event together, jeff reeger, assistant director of the National History center. Over there. Pete all the way in the back on my team and our two interns, kyle nichols and su yan kim who you will be meeting during the q a, they will be running the mics for which we ask you to please wait and then once you are called on, please at the same time state your name and affiliation. Let me welcome Professor William roger lewis from texas who is joining us here today and remind all of you finally to turn off your mobile devices or silence them so you dont interrupt the intense discussion that we will be asking here this afternoon. With that i will turn it over to eric to introduce our featured speaker today. Thank you, christian. W