new cell because he was having problems with his first cellie. he finds old graffiti in his new cell. adds insult to injury. >> talibans kick as. it purses me off because i have seen the worst and been through the worst, you know, myself. and -- by these people. >> sobel says his unit was attacked by taliban fighters on their way back to base from a nearby village. >> at the time we had three hum-vs, i happened to be in the lead hum-v for that mission i was driving and ended up hitting the road side bomb at the bridge. about half of the vehicle disintegrated. we were pinned down for about three, 3 1/2 hours, i want to say, and we had black hawk helicopter end up medivacing me out. i had retinal detachment, ear drums were blown.