[MestaMachine]

I proposed it as well, but not by bombing. That is too obvious. We have the technology to crumble that already crumbling structure using sonic pulses. It is only held together by a band of gold metal strapping. The covering over it hides the damage. A sonic blast would be invisible and unlike a bomb, no real discernable sound except a possible hum. As superstitious as these people are, they would think it was a supernatural act...that allah had forsaken them. A dentist’s minor sonic pulse can bust through plaque on teeth breaking it to small bits of dust.
Imagine a strange humming sound from seemingly nowhere that crumbles already crumbling spacerock into dust.

[TigersEye]

That's good. That's very good! I think you're in the lead now as the "Destroy the Kabaa Day" author. ;^)

We want total dust though. No little pieces they can glue back together with Elmer's.