(cont.) That means not only no power to your apartments, but anything that could normally be powered is now garbage. Cars will cease to work in place on the roads.  No trains or planes.  No food deliveries.  Your grocery stores will empty that day.  No water.  No emergency services.  No guns except for criminals in many cities. Have you ever been hungry? I mean, so hungry, it is causing extreme pain? Now imagine your wife and kids feeling that way. What will you do for food? The answer:  anything. You'd kill to feed your family and you'll feel justified doing it. Some of you will survive that environment and leave the city, walking of course. You'll attack the first healthy people you meet in the suburbs. Suburb people are going to need the most ammo. Eventually you'll be overrun and the migration will make it's way to rural areas of the US where small communities are working together, sharing food and supplies, are healthy, and building defenses. City folks won't stand a chance.