美欧与伊朗的外交接触受人欢迎；但若外交接触无法令伊朗就不将核能用于军事目的作出承诺，或无法使伊朗同意就此承诺的履行状况接受严格监督的话，情况又会变成什么样呢？
American and European diplomatic engagement with Iran is welcome. But what happens if this brings either no Iranian commitment to refrain from weaponizing nuclear power, or no acceptance of tough monitoring of such a pledge?