but left him with his grandparents. >> i told him i'm going to fight bad people and help innocent people. >> but they are fighting with guns from the vietnam era against a ruthless enemy. >> wow, an amazing story. nbc's keir simmons there in the iraqi kurdish city. if you're still with me i know we're having problems with your signal, but if you can hear me it's fascinating how americans are inspired to join in the fight against isis. how do they begin? who do they contact? how are they recruited? >> yeah that's interesting. they are actually, and he is fighting -- >> oh, he left us hanging when we were so curious to find out how that happens. we'll get back with him another time. keir simmons, we appreciate that report. still ahead, the reviews are in and critics are applauding i am cait.