Anti-extremism campaigners in Germany have hit upon a novel idea to expose neo-Nazi supporters.
A group called Exit Deutschland, which is dedicated to helping people turn away from far-right ideology, set up a stall at a nationalist music festival in the German twon of Gera.
Posing as T-shirt sellers specialising in neo-Nazi merchandise, they handed out to 250 people at Saturday's festival, shirts branded with the words "hardcore rebels - national and free" and images of nationalist flags.
But when the T-shirts were washed, the slogans changed to reveal a new message.
