bring in former fbi special agent jonathan gilliam.one who served in uniform, what goes through your mind when you reflect on d-day and what the brave men did that day? >> jonathan: when we look at the point where joe biden will be speaking at, those were rangers that assaulted that 100-foot cliff and i graduated from ranger school and many of the lessons i learned in ranger school came from those individuals from that legacy, same thing with the seal teams and those men in vietnam and all through the different battles and wars they fought in. these legacies that we follow and the lessons that we learn are paid for in blood and paid for in sacrifice by people who had a calling and answered that calling to serve others and to ensure freedom, not only for the united states issue but for allies around the world. when i think about what they did, what this nation was made of, men and women who worked in factories, their sole life was to make a tank or airplane or widget that troops could use and troops at young ages going out and fighting