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Interesting. The Islamic terrorists have a thing about chemical bombs and airliners.

Another possability is Thermite

Sitting next to the wing/fuel tanks. Hoping for a catastrophic fire perhaps?

It can be ignited using the reaction between potassium permanganate and glycerol or ethylene glycol.

[BIGLOOK]

The terrorist was packing PETN on his leg.

PETN was introduced as an explosive after World War I. It is used by itself in detonators and detonating fuses (Primacord) and in a mixture, called pentolite, with an equal amount of trinitrotoluene (TNT) in grenades and projectiles.

PETN is a colourless, crystalline material that is generally stored and shipped as a mixture with water. It is less sensitive than nitroglycerin but is easily detonated. Valued for its shattering force and efficiency,

Enough to beech a bulkhead? We'll find out.