tell me about lieutenant dan berschinski. >> dan berschinski is one of the most inspirational figures that i've ever met. this was a 24-year-old guy graduate of west point. really smart kid. he graduates in 2009, i believe it was. in any event, he goes to afghanistan. it's his first combat tour. and he's leading a platoon of young guys over there. and, you know, he stepped on one of those improvised explosive devices. and both of his legs were blown off, one way up by the hip. he had what they call the hip disarticulation, which meant that they thought that he would not even be able to walk with artificial limbs. so he came back. and i met him. i was introduced to him when he was down at walter reed when it was still in washington in the early stages of his recovery. and he was adamant. he wanted to walk again with these artificial limbs. and the doctors were trying to prepare him and his family for the idea that he might be confined to a wheelchair for the rest of his life. but he would have none of that. and i watched his progress. and he eventually was able to walk. it took a coupl