One of the reasons nukes may not be such a good idea

You don’t have to obtain access to the nuclear fuel, get into the control room [of a nuclear power plant] or penetrate the containment shell. Most of the critical components of the cooling system, including pumps and water intake pipes, sit unprotected outside. If you can get a car bomb or a team with demolition charges near these components, you can shut off the cooling water to the reactor, and physics will take care of the rest.

-- Charles Faddis.