The Straight Dope on zombie invasions

Somebody asks Cecil about zombies and he doesn’t yell at them. Interesting.
The Straight Dope: How would the U.S. military fight a zombie army?

The living dead have no fear of fire, which makes it a great weapon. Zombies engulfed in flames will not only not put themselves out, they’ll continue to wander around, possibly setting other zombies alight. Electricity will paralyze zombies but usually not kill them outright unless it also sets them on fire and so isn’t advisable as a first line of defense. You might think that nuclear weapons would be a good possibility if a city were 100 percent infected, but the downside is that any surviving zombies will be not only shambling horrors but radioactive too.