There is something grotesque about the way the airlines have begun to bully and browbeat the Civil Aviation Authority, and governments, who (rightly, it seems to me) threw wind to caution, and grounded planes due to scientific concerns about the damage volcanic ash can due to jet engines. Yes, it is true the industry lost a billion dollars or so - though clearly they should recoup much of these losses as they fly people home eventually. But to claim that economic interests might trump public safety seems odious, and wrong-headed. The aviation industry is already too strong a lobby. Flying should be pruned back. Despite the travel headaches, everyone on the ground noted the bucolic blue skies above with some degree of approval. Less planes would do more for the planet. And, until science establishes a different set of facts, it stands as given that volcanic ash can cause catastrophic engine failure and result in hull losses. It was right to be prudent about the plume. Fly the careful skies, not the reckless ones.