The potential targets are scattered and hidden all over Iran. They range from a uranium mine in the middle of the country to a nuclear power plant on the Persian Gulf coast to a complex in the northwest doing research on the use of atomic science in agriculture. There is an underground uranium-enrichment facility about a three-hour drive south of Tehran, centrifuges spinning outside the holy city of Qum and a precision-tools factory that makes them in Mashhad, way over by the Turkmenistan border. These are nearly a third of the suspected sites for the much prophesied nuclear Iran that Israeli...