Germans exercise their freedom of speech at Berlin's historic Tempelhof airportSpeaker's Corner in Hyde Park corner is a famous London institution. Here you can get on your soap box and address the crowds, no matter who you are. Now the Germans have decided that they would like to follow suit. A corner of the former landing strip at Tempelhof Airport, which was built by the Nazis, has been set aside for the exercise of free speech. We watch some outspoken Germans having their say.