Many government agencies are expressing concerns about how to communicate with the public without Twitter, especially in emergencies. Of course, it was a bad idea to become dependent on Twitter to such an extent in the first place, and no matter what happens, this needs rethinking.
@lauren I don't know ... Maybe they could update their web pages and offer RSS?
I suspect what the real problem is that they were relying on *re*Tweets to spread the message. And that is just crazy in an emergency situation. An open door to misinformation.