Assassinations and sabotage in Iran Iran has threatened to give a “calculated and decisive” response to the killing of its top nuclear scientist, as the country’s clerical and military rulers pile blame on the Islamic Republic’s longtime enemy, Israel 2009-10: U.S.-Israeli Stuxnet virus attack sabotages centrifuges at Natanz uranium enrichment site 2010-12: Four Iranian nuclear scientists assassinated – Masoud Alimohammadi, Majid Shahriari, Darioush Rezaeinejad and Mostafa Ahmadi Roshan. Iran accuses Israel of killings 2015: Iran nuclear deal with six major world powers 2018: U.S. President Donald Trump quits Iran nuclear deal Jan 2020: U.S. drone strike near Baghdad airport in Iraq kills Iran’s most powerful military commander, general Qassem Soleimani Jul: Fire at Natanz plant blamed on cyber sabotage Aug: Al Qaeda’s deputy leader Abu Muhammad al-Masri – accused of directing 1998 bombings of two U.S. embassies in East Africa – assassinated in Tehran by Israeli operatives acting at behest of U.S. Nov 27: Prominent Iranian scientist Mohsen Fakhrizadeh (right) assassinated by gunmen in Tehran. Western officials believe Fakhrizadeh played pivotal role in suspected Iranian work looking into feasibility of building nuclear weapon 300km 185 miles IRAQ Baghdad ISRAEL Tehran Natanz IRAN Above left: Qassem Soleimani. Right: Abu Muhammad al-Masri Source: Reuters Pictures: AP, Getty Images, U.S. Department of State © GRAPHIC NEWS