so shouldn't we get our inphones and internet from the same company? that's why xfinity mobile comes with your internet. you get up to 5 lines of talk and text at no extra cost. so all you pay for is data. see how much you can save. choose by the gig or unlimited. and ask how to get $200 off the latest devices. xfinity mobile. a new kind of network designed to save you money. call, visit, or go to xfinitymobile.com. hello, everyone. over the past year, north korea's made rapid advances in nuclear and missile technology that we haven't seen before. >> brian todd reports on how pyongyang went from regional problem to global threat. >> reporter: new warnings of a young dictator's nuclear and