You guys don't understand what these viruses can do, do you?
Stuxnet was designed for a single target, the Iranian Uranium Facilities. It was not spread towards simple users computers, it was meant for industrial computer networks. When they detected the virus, they can't simply do some sort of system restore or anything like that, it was the most complicated virus ever designed. Not some script kiddy's virus to steal your passwords, it was a whole new type of virus. A real weapon.