I’m with JimCarr28, a commenter at Instapundit, who says Islamic State makes him nostalgic for napalm. Not to mention the Paris magazine attack and subsequent Jewish hostage-takings.
Because “people on fire tend to be too occupied to cause their neighbors much trouble.”
So much cheaper than multi-pound bombs, too, and oh, so much more effective on the target and its audience.
Indeed, why do we shelve our best weaponry, just when we really need it?
THE TEXAS SCRIBBLER 
Sennacherib has seen many pictures where the application of nape would have had a most salutary and satisfying effect! It does produce a remarkable dance that even the dervishes would envy.
Hm… a thought worth considering. And cheap to produce, too.