[AmericaUnited]

I still like the idea I read here sometime last year.

You drop several titanium GPS guided "needle spears" down into the reactor core. They come in virtually undetectable and penetrate deep down into the core, causing a meltdown. Of course the whole mess then has to be cemented over, like Chernobyl, so the spears can never be discovered.

[F14 Pilot]

Carbonated Bombs first used by Iraqis to destroy Bushehr Nuke facilities in the first Persian Gulf War in the 80's.

The effect were as same as what your idea is here.

[datura]

Tungsten, not titanium. Ti is very light, and has a low terminal velocity, among other reasons. Depleted uranium alloyed with tungsten cased in a ceramic would work best.

[Uncle Jaque]

RE:

"...titanium GPS guided "needle spears" down into the reactor core. They come in virtually undetectable and penetrate deep down into the core, causing a meltdown. Of course the whole mess then has to be cemented over, like Chernobyl, so the spears can never be discovered."

Ahhh... How do you explain the holes through the roof of the containment dome?

And wouldn't lots of radioactive gas escape via those penetrations? Lots of collatteral radiation injury and environmental contamination - may not be all that great an idea, methinks.