[HiTech RedNeck]

If penetration to magma happens at a place where a nuke just blew, wouldn't the magma blow the "residue" up into the sky and all over the place? I'd think mechanical and/or conventional explosives would be the way to go.

[Ronaldus Magnus]

If you could vent the pressure with drilling and/or conventional explosives, it would already be too late to avert the disaster. Again, if there is even the faintest chance of the article's apocalyptic forecast actually happening, a little above ground nuclear fallout will be the least of anyone's worries.