All the hysteria over President Trump’s latest tariff threat to Mexico proved wrong Friday, as the two sides reached a deal that gave Trump what he’d demanded: much more vigorous cooperation in stopping illegal Central American migrants from travelling 1,200-plus miles across Mexico to sneak into the United States.
It may not stop the surge that’s crossed the 100,000-a-month line, overwhelming the Border Patrol as well as the various social-service agencies that have to handle these immigrants. But it’s sure a huge step.