A few things you won't hear about from the saturation coverage of the Newtown school massacre:
•Mass shootings are no more common than they have been in past decades, despite the impression given by the media.
•In fact, the high point for mass killings in the U.S. was 1929, according to criminologist Grant Duwe of the Minnesota Department of Corrections.
•Incidents of mass murder in the U.S. declined from 42 in the 1990s to 26 in the first decade of this century.
•The chances of being killed in a mass shooting are about what they are for being struck by lightning.
•Until the Newtown horror, the three worst K–12 school shootings ever had taken place in either Britain or Germany.
Almost all of the public-policy discussion about Newtown has focused on a debate over the need for more gun control. In reality, gun control in a country that already has 200 million privately owned firearms is likely to do little to keep weapons out of the hands of criminals. We would be better off debating two taboo subjects — the laws that make it difficult to control people with mental illness and the growing body of evidence that "gun-free" zones, which ban the carrying of firearms by law-abiding individuals, don't work.