<< These and a host of other directives, including calls for developing bunker-busting mini-nukes and nuclear weapons that reduce collateral damage, are contained in a still-classified document called the Nuclear Posture Review (NPR), which was delivered to Congress on Jan. 8. >>
This is so 1991. And if it is so "classified" then how does the everknowing LA Times get ahold of it without facing federal crimes? The point is we have nukes pointed at everyone in every possible way. If we don't have them pointed we are a launch code away from it. As far as in theatre tactical nukes: No doubt that was looked over the last time we went to play in the sand box. EVERY nuclear capable country is considered a "potential" threat, even so called allies. It's just business, nothing new.
I agree that it does make an interesting topic, just don't think this a new problem. Just an old one that we havn't put to rest (one way or another).