Stuxnet virus attack: Russia warns of ‘Iranian Chernobyl' - Telegraph
"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."

Stuxnet Worm Used Against Iran Was Tested in Israel - NYTimes.com
"Over the past two years, according to intelligence and military experts familiar with its operations, Dimona has taken on a new, equally secret role — as a critical testing ground in a joint American and Israeli effort to undermine Iran’s efforts to make a bomb of its own."