A German blog reports (translation paraphrased):
Once again it has happened. At a demonstration in front of the Berlin Hauptbahnhof on 27 March 2011, that called for a boycott against Israel, police took two men into custody because they refused to cease their peaceful expression of solidarity with Israel by displaying an Israeli flag.
On March 27 2011 there was a demonstration at the Berlin Hauptbahnhof exhibition. The State of Israel was accused of apartheid (an almost racist comparison) and a boycott of Israeli products was demanded. The brutal terrorist acts against Israel, however, have been omitted, downplayed or justified.