[GSlob]

Some time in the future there will be carbon black/LOX explosives used: the only forensic traces will be soot and carbon black, not easy to distinguish from other explosion aftereffects.

[PoorMuttly]

Muttly like China Lake.

[KeyWest]

Some time in the future there will be carbon black/LOX explosives used: the only forensic traces will be soot and carbon black, not easy to distinguish from other explosion aftereffects.

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Why go to something exotic and bulky when there are small, compact and exceptional bang for the buck alternatives? You really want detonation for back/packs not deflagration, which the LOX/carbon gives. For a car bomb, the Kansas City mix is cheaper, more portable and more stable and is a deflagration mix like LOX/Carbon black (which some use as rocket propellants). Plus, the LOX/carbon black mix has been around for a long time and was only used when nitrates were in short supply.

Finally, the last concern of a bomber is worry about the ID of the explosive.