Imagine a world where every night whenever a family goes to bed, they press a button and 2 ton steel walls close down over their entire house; where everyone has their own personal police officer living in their basement to be sure everything is always alright; and where people are equal, thus, having nothing that others could covet. This world sounds safe, but at a very high and controlling cost.
Now imagine a world where all there is to protect a family is a small steel bar in a wooden door, or a glass window, where the police take at least 15 minutes to respond to a call, and where there are millions of men and women who do not have anything and feel the need to rob for drugs, money or sheer thrill. This world sounds more easy going, but also potentially scary.
It would be agreed that the second scenario is the world today, and everything goes alright, until something goes wrong. Luckily, with home security systems people are able to feel as if they are that much closer to existing in the top scenario. As soon as anything goes wrong in a residence the security alarm goes off, an office is called to immediately phone the police, and the criminal breaking in will generally leave from fear. Any individual who is hoping for steel doors, and in-house policemen should consider this option, because it is one of the safest and most realistic ones available.