inside north korea. north korea, a nation holding it's nuclear sword over the u.s. and it's allies. threatening to strike at any time. a society in a constant state of readiness for war. life on the inside is a mystery to most of the world. i've reported from north korea more than a dozen times over the last few years, each time, we opened the door a little more. ♪ ♪ and seen this country and it's people in unexpected ways.