William R. Richardson: “It's better to talk to them. It's better to engage them.”

This is an economic security issue too.

But the sanctions that have, I think, bitten--that bite the most have been the coal, the uranium, the oil sanctions that are imposed now by the U.N.

I think what the administration needs to do, first of all, yes, find a way to publicly state what we know. Get the facts, make sure that the facts are 100 percent.

I suspect the most, the glaring and strongest sanction that would be proportional would be the banking sanctions.