A section of Air France Terminal 2E at Paris’ Charles de Gaulle Airport collapsed May 23, killing four people and injuring three. The terminal is closed indefinitely and may be razed if investigations reveal structural flaws. The terminal had been open less than a year and cost $890 million to build. The shutdown reduced the airport’s capacity by 15 percent. Flights have been rerouted, but officials expect difficulties in June, the airport’s busiest month.