gibbs. bishop: mr. president, it was remembering these girls, remembering the awful things these traffickers were capable of that left me asking, how do we keep going? how do we put away one, knowing there are 50 more waiting to be caught? sir, i know why i became a federal agent: to help. but what if my help isn't good enough? seaman ramos's armpit, i discovered this. these are serial and batch numbers. tony: what's "dti"? well, in the same waythat programmers and hackers will often hide their signatures in binary code, most new technology companies will tag the end of their serial numberwith their company initials. dti... daly tech industries. you know them?yeah. we were looking into these chips for delilah'ssister when she got a new dog. well, they're based out of dc. and it's a new start-up, so they're probably still small enough to be able to track whoever specifically boughtthis chip. cool. you got an address? stay warm. you, too. tony: you sure you called ahead? i did.well, then maybewe should ca