Need to test several GBU-43/B, Los Angeles, San Francisco, and Washington, DC to give them real urban renewal. Here: http://en.wikipedia.org/wiki/GBU-43/B_Massive_Ordnance_Air_Blast_bomb
The 11 ton explosive power of the MOAB is very small when you compare it with the tactical nukes in our arsenal.
The lowest yield on the B61 nuclear bomb is 300 tons.
That is 27 times more explosive power than the MOAB.