Assault-rifle- and bomb-wielding terrorists killed at least 133 people Friday night in an attack on a crowded concert hall on the outskirts of Moscow. These victims in Russia and their families deserve the world’s sympathy. They are suffering the same kind of pain that we in the United States felt after Sept. 11, 2001, that Israel felt after Oct. 7 and that so many others have known in recent decades as innocent lives have been snuffed out in fanatical violence.