Demonstrators opposing the visit of Pope Benedict XVI to Germany, stand next to caricature of a Catholic nun with a slogan reading 'Never Again', as they protest in front of the Brandenburg Gate in Berlin September 22, 2011. Pope Benedict appealed to Catholics not to leave the Catholic Church as he arrived on Thursday for a four-day visit to Germany, where record numbers of the faithful have quit the pews in protest against clerical sex abuse scandals. T-shirts read : 'former orphan - institution child'. REUTERS/Tobias Schwarz (GERMANY - Tags: RELIGION POLITICS CONFLICT)