When knife wielding terrorists struck in London this month, President Trump expressed odd satisfaction about one aspect of the carnage.

“Do you notice we are not having a gun debate right now?” he tweeted. “That’s because they used knives and a truck!”

The president’s triumphal note completely overlooked the fact that Britain, unlike the United States, settled its gun debate emphatically decades ago in favor of civilian safety and tight controls. The difference in the two nations’ gun homicides is stark. The gun death rate in America is 25 times higher than other high-income nations, like Britain.