[Vinnie]

It recently got into several big facilities in the US and caused some chaos.

Could expand on that?

I thought Iran was to the point of starting their reactor when the control trouble was found.
To me that connotes the reactor was ready to fuel or was already fueled .
If that was the case the centrifuges aren't the only problem.

[mad_as_he$$]

I cannot expand on that because two of them are customers of mine. However, a quick Google search will put you onto how widespread Stuxnet is in the US. Bigger than you might think.