A file image of Roger Waters performing during The Wall tour in New York. Photograph: Chad Batka/The New York Times German police are investigating Roger Waters, co-founder of the band Pink Floyd after he performed in Berlin last week wearing a Nazi-style costume like the one he previously used to critique fascism. Waters, who has made anti-Israel statements in the past that many have said cross a line into anti-semitism, has successfully fought two attempts by German courts to block him from concert venues in the past. The investigation is focused on the costume Waters wore during a rendition of...