Robert Joseph: “The nuclear option is there for Iran if it decides to go down that path.”

My skepticism is that we continue to apply cold-war approaches in our relationship with Russia.

I think Iran will use nuclear weapons. They will use it to intimidate. They will use it to blackmail us.

Leaving any potential loophole would not be in our security interest or in the interest of improved United States-Russian relations.

All arms control commitments must be scrupulously observed, and if they are not, there must be consequences.