School is about to start again and Germany faces a moment of truth on the migration crisis. The country is having to create 100,000 new kindergarten places and will have to deal with 200,000 extra secondary pupils; 30,000 additional teachers need to be trained. The full implications of Angela Merkel’s misplaced decision to allow in more than one million refugees and migrants are becoming clearer — and the hosts don’t like it. In Berlin alone 41 sports halls are unusable because they are still dormitories for people who fled the Middle East and Africa 18 months ago. Result: it’s not just parents who are grumbling. The national mood has curdled.

When the German chancellor announced “Wir schaffen das!” — We can sort this out! —