Again, Americans are killed by a weapon of war. A ban must be on the table.

Once again, an angry young man with a high-powered rifle wreaks bloody havoc on an American community. Once again, heartbroken families must plan funerals for loved ones. Once again, something so simple — like going to church or attending school and now watching a parade — is added to the pleasures of life that can no longer be taken for granted. And once again, we must ask why we allow this madness to continue. How many more families and communities have to be needlessly ripped apart before something is finally...