Apologies to those for whom this is old hat. It's amazing the stuff you find out when randomly surfing.
One of the problems in high-media urban warfare is, how do you blow up a target building without blowing up the ones around it?
Simple yet elegant solution: regular laser-guided smart bombs, with the explosive replaced with concrete.
So in effect they've gone back to using the oldest weapon of all: throw a rock at it.
It's somewhat reminiscent of Heinlein's The Moon Is A Harsh Mistress, in which certain people find out the hard way that a ten ton rock lobbed from the Moon hits the Earth like an atom bomb.