How secure are Berlin's Christmas Markets?

It is Christmas market season in Berlin, a favorite of residents and tourists alike. How safe are these markets three years after the attack at the Breitscheidplatz Christmas market?

Studio Berlin host Soraya Sarhaddi Nelson discusses the issue with Deborah Cole, correspondent for the news agency AFP, and city parliament member Marcel Luthe from the Free Democratic Party (FDP). We also hear from the Berlin Police Union spokesman, Benjamin Jendro.