Richard StoneThe assassination earlier today of a prominent scientist who led Iran’s clandestine nuclear weapons R&D could chill prospects for reinvigorating a 2015 agreement impeding Iran’s paths to an atomic bomb in exchange for economic concessions.Physicist Mohsen Fakhrizadeh was slain in an attack on a highway outside Tehran, according to Iranian news reports, which blamed Israel.
International Atomic Energy Agency (IAEA) documents show that Fakhrizadeh headed the AMAD program, a secret nuclear weapons effort that Iranian officials shuttered at the end of 2003.