03/08/2012 04:34 pm ET Updated May 08, 2012

Our Public Safety Is Under Siege - Daniel Shoer Roth

We live in a world of fear. We fear terrorists, hurricanes, sharks, thieves, airplanes and so much more. We worry and protect ourselves from disease, radiation, mosquitoes, trans-fatty acids, contaminated water and a lot more.

It's an effective defense mechanism that mysteriously inactivates when we get into a car, cross an intersection, wait at the bus stop or ride a bike.