The danger of critical infrastructure being attacked digitally is already far greater than the risk of say, a bomb attack. Weakening our digital defenses to spy on terrorists is like throwing your laptop in the pool because you're afraid someone might light it on fire.
"The danger of critical infrastructure being attacked digitally is already far greater than the risk of say, a bomb attack." This is not true. However, it is important to keep in mind that were it ever true it would be because of blatant negligence on the part of human actors. It is neither obvious nor inevitable that a nuclear plant will ever be attacked digitally because a nuclear plant need not be networked - even…
Blatant negligence and human factors seems to me to be what to expect, rather than rare exceptions. — Well, not for nuclear plants. But for the power grid for example, and trains and cars and the water pipe system perhaps.