German Chancellor Angela Merkel enters an interrogation room as she visits the prison of the former East German Ministry for State Security (MfS), known as the Stasi, in Berlin's Hohenschoenhausen district in this May 5, 2009 file photo. For thousands of former employees of Communist East Germany's loathed Stasi secret police, next week's 20th anniversary of the fall of the Berlin Wall is no cause for celebration. Experts say few of the Stasi's 91,000 ex-employees, or its 170,000 unofficial informers, have come to terms with their role in one of the world's most repressive organisations. Reuters Pictures 1 month ago

German Chancellor Angela Merkel enters an interrogation room as she visits the prison of the former East German Ministry for State Security (MfS), known as the Stasi, in Berlin's Hohenschoenhausen district in this May 5, 2009 file photo. For thousands of former employees of Communist East Germany's loathed Stasi secret police, next week's 20th anniversary of the fall of the Berlin Wall is no cause for celebration. Experts say few of the Stasi's 91,000 ex-employees, or its 170,000 unofficial informers, have come to terms with their role in one of the world's most repressive organisations.