Traditional state-to-state deterrence theory suggests that such a buildup would cost a lot economically while buying nothing of strategic value.

CENTERFORSECURITYPOLICY: Newsweek declares the missile defense debate Over��

But if deterrence theory is valid, then this double standard is invalid.

CNN: Nuclear deterrence could restrain N. Korea, Iran

In fact, once these often repeated, seemingly immutable laws of deterrence theory are easily refuted, the logic for a robust missile defense system is stronger than ever.

CENTERFORSECURITYPOLICY: Start the Clock on the End of the A.B.M. Treaty

The classic theory of deterrence contemplates the state absorbing the first harm, apprehending its perpetrator and then punishing him publicly and proportionally, so as to show potential future harm doers that it does not pay to commit the harm.

NPR: Rules Should Govern Torture, Dershowitz Says

Kennan, whose writings gave birth to the theory of nuclear deterrence, argued passionately but futilely against the development of the hydrogen bomb.

WHITEHOUSE: VP Biden: The Path to Nuclear Security