Something that would help to harden a home and protect your family is to have a home defense system/family pet. One of the best deterrents for a home invasion is a dogs bark, or even the sight of one, especially a big one. There are a great number of medium to large breeds that are great for this purpose; German Shepards, rottweilers, dobermans, and airedales all make great guard/family dogs.
just a thought.