The director of the International Atomic Energy Agency, the nuclear watchdog for the United Nations, said today that he hoped an agreement could be reached with Iran on its nuclear program. Mohamed ElBaradei spoke before a meeting of the nuclear agency's board of governors in Vienna. The board, which is reviewing Dr. ElBaradei's latest report on Iran this week, voted in February to refer Iran's nuclear case to the United Nations Security Council amid growing suspicions that Iran is determined to develop nuclear weapons... "Regrettably, however, after three years of intensive verification, there remain uncertainties with regard to both the...