Re: @jake - Watch this video...
All I can tell you is that of the dozen or so commercial pilots I personally know (flying for a handful of airlines), all tell me that not only were they aware of the so-called problem before the first crash, they all also knew how to mitigate the situation if it ever happened to them. Their airlines made sure of it.
Every single one of them think that grounding all of the aircraft is over reaction by ignorant management-types (including politicians) looking to cull favor with TheGreatUnwashed, who were whipped into a frenzy over fear of the unknown by ThePress. Even here on ElReg. Look back through the comments here, how many of them calling for Boeing's head on a platter start with the infamous line "I'm no expert, but ..."?