dr. matthew kroenig. >> thank you very much for that introduction. it is a pleasure to be here. i think many of us would agree that iran's rapidly advancing nuclear program poses perhaps the greatest emerging challenge to the country, and deciding on how to deal with it is the most important issue facing the united states government now. as i see it, they're all in three ways this issue will be resolved. first, a diplomatic settlement, second, acquiesced to a nuclear iran, or we or israel can take military action. i think a diplomatic settlement would be ideal if we could get it, but i believe there is good reason to believe that we can not. it is hard to a mention any overlap to what the supreme leader would agree to in terms of constraints on the nuclear program that would reassure washington and the international community that the nuclear program is no longer a problem. as beverly kirk pointed out, we plan to return to negotiations with iran, but they said they would not be willing to talk to the enrichment program. a european diplomat said "maybe miracles happen, call on th