I think people also become overly complacent and over-reliant on technology. Even with unlimited resources- which obviously aren't available- the government couldn't evacuate everyone immediately. There aren't enough boats, choppers, etc to do it. And in big emergencies we see repeatedly that no only are EMS overwhelmed but the cell phone systems are, too.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman