This past summer, when the IATA issued a largely anecdotal report on a few dozen incidents with no real bad outcome (spanning a period covering millions of flights), I thought the time for discussion was ripe, and compared some of the rituals of aviation to similar maddening rituals in healthcare.
But now James Fallows is covering the topic, and has terrific input from a diverse and smart audience (it helps that he's a pilot, himself, and a terrific writer). Read it all -- just not during takeoff or landing.