Ban gun purchases for people under 21

Ban gun purchases for people under 21 is something Congress should act on. That's one big step since teens are responsible for a disproportionate share of school shootings. Until then, any 18 year who buys an AR-15 and a load of ammunition ought to be an automatic red flag. Unfortunately, the median age of school shooters is 16. That might make a case for requiring gun owners to store their weapons securely. The U.S. Secret Service studied school shootings and what it found in 25 attacks that involved firearms:

"Nineteen attackers (76%) acquired a firearm from the home of a parent or another close relative. In half of the firearms cases (n = 12, 48%), evidence indicates the firearm was either readily accessible, or it was not secured in a meaningful way."

You combine immature and mentally ill kids who have easy access to firearms, and you have a problem. Requiring secure storage, and raising the purchase age, might help. Responsible gun owners already secure their weapons, but the gun lobby opposes any laws that mandate secure storage. They see it as an infringement on their rights. But who should have greater rights? The safety of children ought to come first.