Real Security basics

First, lets just go historically: What made a "city" safe? Simple really, a). SECURE WATER SUPPLY SOURCE, b). SECURE FOOD SUPPLY, c). HEALTHY POPULACE - to work, fight, reproduce and withstand biological attacks and sustained shortages, d). CREATIVITY . Any people with these assests has survived seiges, wars, famines and natural disasters in some fashion. We must grow our own food,protect our air and water,maintain a safe environment and produce our own energy to be secure from ANY threat.