I'm watching coverage of today's Atlantis launch preparations, and they just played a NASA announcement warning all KSC personnel, news media, and guests that, in the unlikely event of a launch accident within the first half minute, they should move as quickly as possible into an air-conditioned building or a bus or car with the windows closed.
Yeah, I guess in the event of a problem, there'd be lots of nasty fumes around the launch complex.
Ah, the announcer just explained that they make that announcement every time, and I've just never heard it before.
I hope Amy's parents are enjoying their visit to KSC today. :-) They're still more or less expecting to launch, despite the sensor malfunction. I suspect they'll make a final decision later; the consensus seems to be that they can fly without that sensor working.
Ah well. NASA has scrubbed today's launch attempt, and they'll try again late tomorrow morning. I won't be able to watch.