The gates to the security control are cordoned off as security staff attend a strike at Duesselorf airport on January 10, 2019. - Almost 640 flights were cancelled in Germany January 10, 2019 as security staff went on strike at three airports, Duesseldorf, Cologne-Bonn and Stuttgart, meaning disruption for around 100,000 passengers. (Photo by Marcel Kusch / dpa / AFP) / Germany OUT