Camera/doorbell combination offers easy monitoring of who's at your doorstep whether you're home or away

Technology improves our daily lives, but also increases our daily risk. Terrorists and criminals routinely use Google Earth and Mapquest to plan their crimes. Predators stalk children on social media. Identity thieves pull your information from the Web and from card scanners. Your house full of electronic gadgets is a tempting target for common, local thieves.

DefenDoor is an example of technology that also makes life safer. It’s a door sensor that lets you observe who is outside and what is going on at your stoop before you open the door. It’s portable and easily installed, so you can take it with you on vacation to add security to your hotel room or train compartment.

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