The US continues, today, to be the only first-strike nuclear nation threatening to (as an explicit policy) destroy civilian population centers in a host of competitor countries as a coercive tactic and if and when it serves US national interest.<p>The further continuation of this longstanding policy, which is in effect today, is a matter of debate - though there has not yet been a strong enough coalition of opinion to withdraw this doctrine.<p>There were several nuclear strike target lists leaked from the past several administrations and they all say the same thing: capitols and population centers of compeditors, strike first in scenarios where not striking could put the US at a serious competitive disadvantage, use the threat of a strike and the deterrent of weapons of mass destruction as a coercive measure in the toolbox of statecraft.