Iranian leaders prevented a top International Atomic Energy Agency (IAEA) official from disclosing to U.S. officials the nature of secret side deals with the Islamic Republic by threatening harm to him, according to regional reports. Yukiya Amano, IAEA director general, purportedly remained silent about the nature of certain side deals during briefings with top U.S. officials because he feared such disclosures would lead to retaliation by Iran, according to the spokesman for Iran’s Atomic Energy Organization (AEOI). Amano was in Washington recently to brief members of Congress and others about the recently inked nuclear accord. However, he did not discuss...