The latest report from the Washington Post:
Iranian scientist involved in nuclear program killed in Tehran bomb attack
"TEHRAN — A scientist linked to Iran’s nuclear program was killed in his car by a bomb-wielding assailant on Wednesday, a bold rush-hour attack that experts say points to a further escalation in a covert campaign targeting the country’s atomic officials and institutions.
The precision hit in a northern Tehran neighborhood killed the 32-year-old chemical engineer employed at Iran’s main uranium-enrichment facility and brought to four the number of Iranian scientists killed by bombs in the past two years. No one asserted responsibility for the bombing, which prompted a swirl of accusations and denials as well as renewed concerns about worsening tensions between Iran and the West.
An Iranian nuclear expert was killed Wednesday by a magnetic bomb attached to his car, state media reported. Officials were quoted as accusing Israel in the attack, suspected as part of a covert effort to set back Iran's nuclear program.
U.S. Secretary of State Hillary Clinton said on Wednesday that Iran's threats to close the Strait of Hormuz were provocative and dangerous. She also denied the U.S. had any role in the killing of an Iranian scientist.
Iranian officials immediately accused the United States and Israel of orchestrating the attack on scientist Mostafa Ahmadi-Roshan, who was killed along with his bodyguard when an assailant on a motorcycle slapped a magnetic bomb on his car as he commuted to work, according to Iranian news reports. Vice President Mohammad Reza Rahimiblamed the attack on “Zionists” and “those who claim they are against terrorism,” the semiofficial Fars News Agency reported."-more