** FILE ** Iranian technicians work at the Bushehr nuclear power plant, outside the southern city of Bushehr, Iran, on Monday, Aug. 23, 2010. Iran's nuclear chief said on Tuesday Nov. 23, 2010, that a malicious computer worm known as Stuxnet had not harmed the country's atomic program and accused the West of trying to sabotage it. Iran earlier confirmed that Stuxnet had infected several personal laptops belonging to employees at the Bushehr  plant but that plant systems were not affected. (AP Photo/International Iran Photo Agency, Ebrahim Norouzi)

Photo by: Ebrahim Norouzi

** FILE ** Iranian technicians work at the Bushehr nuclear power plant, outside the southern city of Bushehr, Iran, on Monday, Aug. 23, 2010. Iran's nuclear chief said on Tuesday Nov. 23, 2010, that a malicious computer worm known as Stuxnet had not harmed the country's atomic program and accused the West of trying to sabotage it. Iran earlier confirmed that Stuxnet had infected several personal laptops belonging to employees at the Bushehr plant but that plant systems were not affected. (AP Photo/International Iran Photo Agency, Ebrahim Norouzi)