By taking responsibility for its own foreign policy rather than shifting it into the U.N. Security Council, the United States would limit the ability of both future U.S. governments and perpetrators to shift responsibility and confuse issues. Deterrence with the Soviet Union worked. It worked because it provided clarity, responsibility and clear consequences. It personalized the problem, placing the lives of the leaders and their families in jeopardy for policy failures. It will work again.
Defense is needed, as is interdiction.
But the final sanction, massive and unlimited retaliation for any use of WMD against the U.S. or anything that the U.S. regards as being in its national security zone, will focus the attention of the Iraqi, North Korean, Iranian or any other leadership. If you build weapons of mass destruction, and they are used by anyone against the United States, you will be held responsible regardless of whether the U.S. government has proof that will stand up in a court of law. If you are afraid that someone will use WMD and blame you for it, then you had better work with the United States, before it happens, to demonstrate your bona fides.