It is conceivable that you could fire a nuke at the incoming nuke and even if you came close, you would blow it up before it reached its target. The greenies oppose this method because they do not want nuclear stuff flying around in the atmosphere. If you locate it in California, maybe the tinhorn dictator will fire it at Florida or New York City. You have to build a lot of them. Instead, you should get behind the idea of defending our naval fleets against nuclear attack.
Regional defense makes more practical sense than area defense.
You would have to explain to Greenpeace that it would be better to have the nuke explosion in the upper atmosphere rather than in the middle of the fleet. You can do that. It might even help you win the election. Inc. All Rights Reserved.