LONDON, ENGLAND - DECEMBER 21: Passengers wait in the South Terminal building at London Gatwick Airport after flights resumed today on December 21, 2018 in London, England. Authorities at Gatwick have reopened the runway after drones were spotted over the airport on the night of December 19. The shutdown sparked a succession of delays and diversions in the run up to the Christmas getaway, in what authorities have called a "deliberate act" to disrupt the airport. Police continue their search for the drone operators responsible. (Photo by Jack Taylor/Getty Images)