To many in the intelligence community (especially those who purportedly created it), the Stuxnet worm was a wildly successful cyberattack. But it was also a major failure on at least two fronts—fronts that could come back to haunt us.[gizmodo.com]

In that this, or similar, threats aren't going away anytime soon, now would probably be a good time to start a policy of giving critical infrastructure manual control capabilities ...