The biggest problem with this overall missile defense concept is that it is fighting the ultimate law of the universe — probability balance. All creation at some point in time must be offset by destruction — stars are born, stars die, peace is offset by war love by hate, etc. So now after a few hundred years of incredible scientific and technological advancement the natural built in offset of all this creation is nuclear annihilation of these wonders along with their creators. There is no magic beam or anti missile missile that can defeat this super law of the universe.