Have to admit I'm rather confused by this. If I was a suicide bomber (and curiously, there appear to be fewer suicidal pax than there are aircrew) I'd be inclined to put the Semtex in a 'smuggler's waistcoat' (remember the ones they used on the routes from DXB to India, for the 10 Tola bars?) as it wouldn't set off the detectors. A det you can stick in a pocket, say well swaddled in cotton wool in a box - and away you go.
Boom!!
Kaptin M - you can indeed have your wishlist on our superduper L1011s. Only problem is it will cost you US$100k per seat to fly LHR-SYD one way: but hey, you get the watch!!
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Happiness is a warm L1011