Flamethrowers. We need flamethrowers. Lots and lots of them. And MOABs and Daisy Cutters and maybe a little carpet bombing thrown in for extra measure.
Oh sure, the Islamawackos will scream bloody murder. But so what?
Let us remember that the only good terrorist is the dead terrorist. And if we take out a few innocent people as well, too bad. Shouldn't be living near the terrorists.
I've always wondered if the way to deal with this sort of problem wouldn't be to set up some humvees as remote-drive vehicles.
Stick mannequins in the seats. For more realistic body movements, use captured foreign jihadis with helmets to hide the duct tape over their mouths. Have AC-130's standing by.
Drive into bad neighborhoods "by mistake", wait for the attack and the crowd to gather, then cue the AC-130's. Repeat until no further such attacks occur.