The evolution of our world Never before have we all been more aware of the need for security than we are today. From tightened security at the national level to the local school concerned with ,  providing its students with a safe environment in which to learn security has become and will remain a top priority. The need to feel secur etouches all aspects of our everyday lives. Education, transportation, health car, government,enterprise and retail have all been forced to reevaluate previous assumptions about security.