Hesays hes hopeful his visit to Tehrancould help reach agreement on clearing up thequestionsabout Iransnuclearprogram, althoughhe admitted nothing was certain.
The truth is that neither the U.S. intelligence community, nor the International Atomic Energy Agency, nor anybody else outside a very small circle in Iran has certain knowledge about the current state of Irans nuclear-weapons program, or how far it is from producing one or more usable devices.