This world may be getting crazier as the days go by, but provisions are being made to combat the dangers. You could be enjoying a safe evening with your family or by yourself and an intruder approaches your doorstep. What would they want, …

You would like to see who is outside your door when you hear a knock at it. You do not want to pull the door open blindly, not knowing what you will be up against once it is open. You would like to know who is outside your door when you he…