RCW: Let's follow up with a question about the alternatives. If not talks what are the other options to engage Iran? 

Gen. Clark: Well there are a variety of different ways to do talks. There are many different ways of opening a dialogue or sustaining a dialogue once it's been open. And there are many different things to talk about. The leadership in Washington will gauge the situation and I believe we can count on this President to make the right decisions for that. The real burden falls on the leadership in Iran. For them to refuse and persist in seeking nuclear weapons is to choose a course that really drives the nations of the west to no alternative but contemplating the use of force.