Thomas M. Countryman: “We cannot allow these weapons usable materials, to be separated from spent nuclear fuel.”

This would become an issue of extraordinary concern and division between ourselves and our P5+1 colleagues.

The policy without professionals is by definition an amateur policy. You have to help make the choices that bring this country forward.

We would argue that any effort to step away from JCPOA would reopen a Pandora's box in that region that we do not think we could close again.

In an environment as conflictive and combustible as the Middle East, making sure that a country like Iran does not have a nuclear weapon has to be a strategic goal of utmost importance.