 I'm Elaine Chong and you're listening to BBC Trending. Chinese people around the world are being targeted by a terrifying scam. Criminals posing as police threaten them with extradition to China unless they pay up. So you've got 24 hours, you're packing back everything, police are coming to take you to airport. But is China's own alleged record of foreign repression making the scammers' job easier? That's all coming up after the latest world news.