I think food is the scariest of these. A collapsed tunnel/bridge is a tragedy that will scar lots of people, but society as a whole keeps moving. And people can

I think food is the scariest of these. A collapsed tunnel/bridge is a tragedy that will scar lots of people, but society as a whole keeps moving. And people can adapt to loss of electricity on its own. Yes there will be deaths from the elements, failed emergency systems, as well as an increase in crime. But food supplies totally disappearing is when the full chaos begins, especially someplace like NYC where people don't typically have space for a few weeks of canned food.