To be honest, these days I just take it as a given that all critical US infrastructure (the power grid, hospitals, and now apparently water treatment plants) is

To be honest, these days I just take it as a given that all critical US infrastructure (the power grid, hospitals, and now apparently water treatment plants) is riddled with time bombs, and that if we were to ever get in a shooting war with the countries which put them there, they'd all go off at once and we'd be in a world of hurt. I hope government/military planners are making the same assumption. It would be sort of darkly amusing if we've done the same thing to other countries, and so time bombs in infrastructure essentially replace nuclear weapons as the guarantors of Mutually Assured Destruction.