Gato, if that MOAB doesn't send a shiver of fear down Al Queda's neck, then they're just too stupid to be afraid.
Problem is, it's us that's too stupid to build any beyond the handful of prototypes.... Unless, we have something even more "exciting" to demo wherever a few of Al Queasies, as I like to call them, gather together to issue their fatwahs and plan their jihads.
Yep, when we deployed the (smaller) daddy of the MOAB, the Daisy Cutter, against the VC/NVA, after they changed there pants, they complained to the UN that we were using nukes. IIRC we used a few DCs against the Iraqis back in Desert Storm. Better for intimidation than actually destroying stuff... hard on the eardrums, even of troops dug into slit trenches or in bunkers.