People protest with placards in front of the construction site of the new headquarters of Germany's intelligence agency Bundesnachrichtendienst (BND) in Berlin, September 4, 2013. The protesters are angry over recent revelations of the U.S. intelligence service eavesdropping on Germans and reports of official German collusion and want greater transparency on the use of data. The placards read 'Monitor the secret services' and 'We want explanations'. REUTERS/Pawel Kopczynski (GERMANY - Tags: POLITICS CIVIL UNREST)