I've only been following developments in Egypt lightly, but the most interesting stuff I've read this evening is about the way in which various "neighborhood watch" groups have sprung up to defend their areas from looters (who apparently are often government thugs promoting more chaos) with both weaponry and ID-checkpoints. They are wearing white armbands to identify themselves as forces of order. In the absence of any legitimate state to enforce the basic rules, people are drawing upon pre-existing, but often hidden, instititutions to maintain order.
I wonder whether our in-house experts on evolved norms and self-governance, especially Professor Leeson, have been watching this development and have any insights. And I also wonder how this compares to what we saw in parts of New Orleans after Katrina.