Well, hold on here. We do know from budgets released before Stuxnet that Obama significantly increased funding of cybersecurity initiatives. Additionally, unlike a full military offensive, Stuxnet is both something that gives the user deniability and invokes damage upon specific infrastructure without causing significant collateral damage or loss of life. Maybe it's just me, but if you want to start this analysis with the preconception that Obama is generally afraid of instigating conflict (a stance which I would be willing to dispute, but that's a side issue), this seems like exactly the type of action he would authorize and speed up.
That being said, this is by no means an Obama-only party. If the New York Times is correct, Stuxnet would have been a product of Bush Administration creativity, not Obama Administration creativity, in actually constructing the plot, establishing the plan/goals, and constructing the organization which would take on the task. Given the report we have, literally the only thing that we can pat Obama on the back for doing is saying "Wow... that's awesome! You should get more money for that!" EDIT: I should add that Obama would get credit for actually ordering the attack... which is something, granted, but regardless, the point is that this may not have even been an option for Obama had it not been for the Bush-era planning/development phase.
The only other note I want to throw out here... Stuxnet is only the first of what my count says is 4 separate viruses based on loosely similar code (Stuxnet, Duqu, Stars, and Flame). What kind of crappy freeware firewall programs are they using? X(
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