There are elements there. I think at the moment it's not a capability that I would give priority to. Iran doesn't currently have a long-range ballistic missile capability, and I don't think the relative threat perception in Europe would warrant a big effort on this front. Part of the difficulty is that the same system, the Aegis standard ballistic missile system, which is deployed by the U.S. on behalf of NATO at this stage, is one that is in the process of development and expansion. Down the road, some of the missiles that are envisaged for that system have a capacity in terms of velocity that would allow them to intercept a Russian missile. That is really the worry that has led Moscow to object to this. They've asked for legal, written assurances from Washington that this would not be the case, and Washington has demurred on that.
My own sense is that with Iran, the emphasis should be on the current ratcheting up of diplomatic pressure and isolation on Tehran, until such time as it takes some action to reassure the international community about its intentions, particularly regarding its nuclear program. In my mind, that's where we should be focusing our energies, our investment, for the current period.