German Health Minister Jens Spahn speaks next to Head of the Robert Koch Institute Lothar Wieler and German Chancellery's Chief of Staff Helge Braun during the presentation of the new contact-tracing smartphone app that will use Bluetooth short-range radio and technology standards from Apple and Google to alert people of the risk of infection with the coronavirus disease (COVID-19), in Berlin, Germany, June 16, 2020. REUTERS/Hannibal Hanschke/Pool