options they want to break. >> reporter: he was recently accosted by a man who tells him jews will end up in the gas chamber. "it's only about the money for you, you will pay," the man says to him, "nobody wants you here." >> reporter: he told you you will go back to the gas chambers? >> yeah. >> reporter: you've heard that before? >> very often. >> reporter: germany has acknowledged they have a problem. felix klein is focused on a nationwide system of reporting anti-semitic crime. >> anti-semitism has always existed in germany also after 1945. now, though, this it showing its ugly face more publicly. people who wouldn't dare to say