[ToddT]

Hmmm Can't remember, what it was called but wasn't there a very large bomb dropped in the Tora Bora (afghanistan)May have been a daisy cutter.
I can't remember but the MOAB, may be intended to work like the Grand slam, which generated the the earthquake affect by borrowing under ground then detonating, causing the ground to rumble to take out hard to hit targets, In WWII it was used to take out a bridge to great effect.