http://nashvillecountryproductions.com/News/the-role-of-motion-sensor-lighting-in-your-home-security-system-%7C-motion-sensor-lights/ If you have a home security system, it most likely includes motion sensor lighting.  Thieves like to operate out of sight.  They break into dwellings when the Sun, 20 Dec 2009 04:39:44 CST en