The authorities in Shanghai have arrested a group of self-styled doctors who carried out “bloodletting therapy” claiming it would remove “evil energy” from people. Footage of three people performing the therapy on a man, which was released by Shanghai TV recently, shocked social media. The video shows that three self-styled doctors insert a long needle into a man’s arm before letting the blood flow out along the needle, forming a small pool of blood on the floor. They reassured the man that the...