BY JAY SOLOMON
WASHINGTON—Iran denied United Nations inspectors access to a suspected nuclear site, scientists and documents during a visit to Tehran this week, dimming already scant hopes for a breakthrough to end a standoff over Iran's nuclear work, said diplomats briefed on the International Atomic Energy Agency's mission.
In a sign the visit did little to ease international condemnation of Iran, on Thursday the U.S. Senate Banking Committee approved a sanctions bill to further curb Iran's access to high technology and munitions, intended to help cripple Tehran's energy sector and the businesses of the Islamic Revolutionary Guard Corps, Iran's elite military unit.