The risk, that is, of violating the taboo against suggesting that maybe we aren't all about to die, die, die!! I tell you at the hands of the enemy out there, a-sleepin' and a-plottin'.
Bryan Caplan notes on his blog that Kip Viscusi, the great scholar of risk assessment, refuses to apply his own intellectual standards to the topic of the risk of terrorism and admit that, near as we can tell, it ain't much.
I asked "Where's the Terror?" last September.