This is the 'Peltzman Effect' http://en.wikipedia.org/wiki/Peltzman_effect http://en.wikipedia.org/wiki/Peltzman_effect "The Peltzman effect arises when people

This is the 'Peltzman Effect' http://en.wikipedia.org/wiki/Peltzman_effect http://en.wikipedia.org/wiki/Peltzman_effect "The Peltzman effect arises when people adjust their behavior to a regulation in ways that counteract the intended effect of the regulation. So, for example, when the government passes a seatbelt law, some drivers may respond by driving less safely"