By Chris Johnson — USA Today”The world is not what you think” — this is how the National Academy of Sciences’ latest study on school shootings concludes.

The authors write that the most important lesson is that “schools and society can respond to school shootings, but they can only do so with a commitment to change.”

In other words, the next time you see a school shooting and think, “Oh, it’s a random, bad guy,” remember that the real threat is our society and the institutions that govern it.

This is a story of a society that needs to do a better job of keeping its kids safe.

But if the next generation of students can’t learn from its mistakes, and learn from it, the country will be in for a long, painful, and difficult year.