A massacre of 28 children and teachers at a school in Connecticut on December 15 has received weeks of intensive media coverage. And yet very little attention is paid to the roughly 100 people killed in the U.S. every day by motor vehicles. The carnage at the scene of a serious road accident is just as horrific as a battlefield, but only those directly involved – the victims and the workers whose job is to clean up the mess – are fully aware of it as an everyday reality.

Millions of animals – deer, badgers, frogs, birds, etc. – also die on the roads. They are called “roadkill”. That seems an apt term for the human casualties too. Worldwide human roadkill is estimated at 1.3 million a year. The injured number in the tens of millions.

Average annual human roadkill in the U.S. in recent years has been about 40,000. Another couple of million are hurt; 250,000 of them have sufficiently bad injuries and sufficiently good health insurance to be hospitalized.