one more thing...
Who on earth puts in a wide-area disaster warning system that doesn't have an "All Clear - The danger has passed" indication to tell the public they are no longer at risk and can go about their business? Such an indication could have been sent to put a false alarm to bed relatively quickly.
I used to live near a chemical plant that had a siren to warn the local residents of a chemical leak. Continuous siren = Close all your windows and stay indoors. Intermittent siren = Incident contained. Go about your business.
Biting the hand that feeds IT
