(From L) German Chancellor Angela Merkel, the President of the Bundestag, Germany’s lower house of parliament, Norbert Lammert, Daniela Schadt, patner of the German President Joachim Gauck attend a memorial service for the 150 people killed in the Germanwings plane crash in the Cathedral in Cologne, western Germany on April 17, 2015. About 1,500 guests are expected for the service, among them 500 relatives of the victims, in northern Europe’s largest Gothic church, which will also be broadcast livCe on screens outside the cathedral and to viewers nationwide. AFP PHOTO / POOL / OLIVER BERG