A strike by the Verdi union on Wednesday grounded all passenger flights at Berlin Brandenburg Airport (BER) for the entire day. The walkout began early in the morning as planned and was set to last until midnight, Verdi negotiator Holger Rössler said. Terminals have remained largely empty. "All passengers were informed in good time by their airlines and did not come to the airport at all," said a spokesperson for the airport operator, Berlin Brandenburg Airport Company. "Flights were rebooked