Berlin’s attempts to build a new airport have been a national embarrassment. The project is already ten years behind schedule. What’s more, the new Brandenburg Airport already looks too small to meet current, let alone future demand for air travel. The capacity crunch will come if the authorities go ahead with existing plans to close Tegel once Brandenburg is finally ready. If Tegel were to be allowed to remain open this crunch could be avoided, which would boost to economic growth and could provide more variety of airline services and more choice for passengers.