We can't guarantee that we will have the type of systems that we want to attract that ridership.

If we do not increase our investment in upgrading and maintaining transit systems soon, we will inevitably face a crisis.

Well, maybe we can find a way to incentivize that.

I believe that we are a transit leader.

The G-8 has set the September meeting of the G-20 as supposedly a deadline for Iran to accept negotiations or face stronger sanctions.

And, Mr. Chairman, if I may, just one last question. How do you get the Russians, for example, to cease its arms sales, specifically sophisticated anti-aircraft systems, to Iran?

The critical thing is that we do something and we do something quickly if Iran doesn't respond to our offer by the deadline that the administration has set.

Iran is not simply an existential threat to our ally in the Middle East--Israel--but it is a threat.

It just seems to me that when we create the impression that we are reassessing without action, then I think if I was the Iranians and my goal was theirs, that I would love all these reassessments.

We need to do much more than that, and as we all have said, if we really want sanctions to be able to have a significant bite, they are going to have to be multilateral.

The question is whether it is a determination that you can't, as Dr. Maloney said, you are not going to affect the outcome.