If you want to improve safety in your home, and get a bead on an intruder (before he shoots you), consider buying a Baby Monitor from your local electronics store. These are essentially low-cost security cameras, and they come with a radio link between the camera and a handheld TV screen. You can place the camera (which is small) to cover the key access ways in your house, and keep the handheld screen beside your bed. Presto! You can see any problem if your hear a noise in your house, without getting into the line of fire of an approaching burglar. Check out the various models, because some cameras don't work well at night, and some radio links are interrupted by cell phones. But the good Baby Monitors have excellent resolution and no cell phone disturbances.

Pete