The goal of US foreign policy is world domination. The sanctions on Iran may well contribute to that goal. However, from the point of view of what's good for mankind generally I'm not sure it wouldn't be a good thing for Iran to have nuclear weapons. It would discourage other countries from attacking Iran and it would also give other countries an incentive not to destabilise Iran. There would, of course, be some obvious disadvantages - so it's not an easy (hypothetical) decision - but Iran would probably be a safer and better custodian of nuclear weapons than at least one other country that already has them so I certainly don't think it would be a terribly bad thing for Iran to join the club.
>The goal of US foreign policy is world domination.
US is a global superpower and they are the creators of the modern global order of free trade and democracy (it isn't a coincidence that there has been meteoric rise in the number of democracies since WW2, and end of Cold War). If that's 'world domination' then OK. But to be clear, if it wasn't them, another global superpower would fill the vacuum. In the 20th century, that would have been the Soviets. In the 21st, it may be China. Is that better?
