The headlines are downright scary. “Craigslist Home Invasion Robbery Ends in Murder.” “Craigslist Laptop Seller Held at Gunpoint.” “Medical Student Charged as Craigslist Killer.” Somewhat less frightening but equally disturbing are the abundance of scams attributed to the classified site. One might think it is a depository of depravity, but of the nearly 50 million [...]

Motorcyclists grumble about wearing a helmet. Residents resist evacuating under an imminent threat of a hurricane. Employers circumvent safety regulations. Workers grouse about hard hats, safety meetings, and fire drills. Why in the world do people behave this way? Human nature, mostly. Bombarded with “Breaking News” alerts, people tend to become desensitized to threats to [...]