entirely reliable. we don t know that the north koreans at this point can 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, two-stage missile, this is what we would launch out of alaska or california and it would release an exoatmospheric kill vehicle. it s made by raytheon, 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 about 17,000 miles an hour and tear it apart. it does not explode, this is about as big as a refrigerator t just smashes into it and tears it apart. you can imagine how difficult that is to pull off but this is the technology that we re trying to perfect so that we can stop the north korean technology if and when they ever get it perfected and actually can