John Kerry actually said...

I think if we are going to resolve this issue diplomatically, we do have to provide Iran an exit path.

There are other issues nonnuclear, as you and Senator Lugar have pointed out, between the United States, the Western countries, and Iran.

The fundamental question for United States policymakers is whether a sanctions regime can be imposed that will verifiably stop Iran's nuclea...

To me, this is a good starting place.