this weekend, al jazeera america takes olook at the work of one grat rootgrass roots organizati. here is a look at the documentary shelter. >> i went out to iraq in 2009. and we got bombed every thursday. they would lop off rocket rounds, more tar rounds, whatever they had. -- wifn of those rounds hit three or four guys and i think one of them survived, i don't really remember, kind of burnt my memory with meth to try the forget about it. but we lost three guys, three mps. you talk about numbness. when i got back i had no fear, period. i wa would walk into the middlef the hood, to get weed to try to calm me down. >> how did numbness equate with the using and eventually with thought having a home? how did that dynamic play out? >> i could have made it well if i used unemployment, i got unemployment for two years, if i used it right. to use it to quiet my fears and my feelings pretty much i could have went somewhere but i didn't. i just -- i don't know how to explain it. >> that scene is one that mark deal knows all too well. mark is the executive director of the california organiz