London Telegraph 
Jan 18, 2011
Russian nuclear officials have warned of another Chernobyl-style nuclear disaster at Iran’s controversial Bushehr reactor because of the damage caused by the Stuxnet virus, according to the latest Western intelligence reports.
Russian nuclear scientists are providing technical assistance to Iran’s attempts activate the country’s first nuclear power plant at the Gulf port.
But they have raised serious concerns about the extensive damage caused to the plant’s computer systems by the mysterious Stuxnet virus, which was discovered last year and is widely believed to have been the result of a sophisticated joint US-Israeli cyber attack.
According to Western intelligence reports, Russian scientists warned the Kremlin that they could be facing “another Chernobyl” if they were forced to comply with Iran’s tight deadline to activate the complex this summer.