last four years. >> matt bradford: i wake up in the middle of the night and can't go back to sleep, eep thinking about, you know, getting blown up, laying there on the ground. >> pelley: bradford was blown up in 2007. he was 20 then, inspired to join the corps by 9/11. the last thing he saw in iraq-- the last thing he ever saw-- was the wire that turned out to be a roadside bomb. he was blinded and lost both legs. bradford came back to re-imagine that final vision of iraq. >> bradford: still, i'll always have that picture in the back of my head, you know, of, you know, looking down and seeing, you know, the wires going into the pipe, that, you know... shrapnel going straight in my eyeballs. >> pelley: some folks would think that, after what happened to you, you'd never want to get anywhere close to this place again. >> bradford: you know, ever since i've been hurt and stuff, i've had a lot of people tell me i couldn't do something. so i told them i would return back to iraq, you know, someday. i don't let people get me down on anything. if they tell me i can't do something, i want to