A security staff wears a face mask with lettering 'Happy New Year 2021' during a concert 'Willkommen...
A security staff wears a face mask with lettering 'Happy New Year 2021' during a concert 'Willkommen 2021' (Welcome 2021) amid coronavirus disease (COVID-19) restrictions in Berlin, Germany January 1, 2021. John Macdougall/Pool via REUTERS