"But if we said that, how long would it be before every paper headline in the world reads "US THREATENS TO NUKE IRAN, NORTH KOREA!"
- What would you prefer - headlines like the one you suggest above, or the one that reads, "US ESTIMATES 1.5 MILLION DEAD AND 4.0 MILLION INJURED IN TERRORIST NUCLEAR ATTACK ON NEW YORK. OTHER CITIES FEARED NEXT. DOW OFF BY 5,000 POINTS!!!"?
Take your pick, guy - it's gonna be one or the other.
(It ain't easy being the President, is it?)