to these response missiles which would then fire and go up and try to hit it and take it out. ideally, they would like to hit it early on or in the middle and last resort way over here. what they want is numerous shots at it so they can stop it. that's really the goal. they have to have numerous shots. this is all still fairly new technology and not all entirely reliable. we don't know that the north koreans a the this point can really get a missile to go this far. but our ability to intercept it and stop it is also a tricky, tricky thing to pull off. look at the things we would use for this. this is what we would launch out of alaska and california. and it would release something like this. this is called a kill vehicle. you see it's got those little propulsion units around it there. and it also has an infrared guidance system in the nose. and that, when it gets released locks in on the nuclear warhead in this missile and it will guide this in to actually smash into that at 17,000 miles an