Editorial: ‘Guns don’t kill’? Then why are US deaths such an outlier when maniacs attack?

The knife attack that wounded an adult and three children in Dublin last week, and the subsequent anti-migrant rioting there, demonstrated the ways in which the U.S. and Ireland are part of the same chilling trajectory of political violence and intolerance that is wracking so much of the world today — as well as the one big way in which America remains a tragic outlier from other advanced nations.