A Strategy Not To Accept Nuclear Iran

Paul J. Saunders argues in a his piece in "National Interest Online" that Washington should start to develop a serious plan to manage the most likely future: an unreformed and nuclear-capable Iran.
Without providing any shred of evidence, Saunders argues that such a strategy would attain the following:

• Deterring Iran from using nuclear weapons.
  
• Ensuring that a potentially nuclear Iran would not be emboldened in relations with its neighbors.
  
• Preventing Iran from sharing nuclear technology with others.

While Saunders' riddled with illusion argument hovered around the idea of preparing for a possible nuclear Iran , he calls upon his readers to find comfort in the assurance that what he is suggesting is:

a sensible strategy that will allow America not to accept a nuclear Iran if one should emerge despite our best efforts.

Do we need a strategy "not to accept a nuclear Iran"?? Isn't this Washington's basic position according to which "strategies" are supposed to be designed??