The best thing I read in the essay(besides being stocked) was setting upsome informal neighborhood watch group type. I'm pretty lucky because where I live, it would not take much at all to seal it off from the outside. But it would have to be an organized effort.
Ping.
Yep, a LOT depends on the layout of the area around your house. A walled gated community will be terrific.
Living a block away from main arteries on open surface streets will be a disaster.