Another silver haired old lady tries to blow up an Airliner.....

[fdiron]

C4 burns when lit with a match, it doesnt explode.  In Vietnam U.S. soldiers would sometimes take the C4 out of claymore mines and use it for cooking fuel.  It will only explode when ignited with an electrical charge.

[mrsid2]

fdiron, so you mean a conventional dynamite cap + fuse won't explode c4?

The cap is a metal cylinder the size of the cap of a pen, yet effective enough to blow a finger off easy. It does not require electricity in any form, they were widely used for detonations just a couple decades ago.