What Happened Last Night in Sweden?

In February 2017, President Trump made a speech to his supporters. He moved on to the topic of immigration and Sweden. "You look at what's happening last night in Sweden," he told the crowd at a rally in Florida. "They took in large numbers; they're having problems like they never thought possible". This confused the Swedes because they had not noticed anything happening that Friday night in their country. But since then there has been a spate of violent crime in Sweden. Ruth Alexander investigates.