In 2017, Cheng San, an American game designer, found himself at the pointy end of the Chinese regime’s crusade against gun ownership. He was sentenced to three years in jail for buying toy guns online—deemed an illegal act by authorities applying the regime’s harsh and broadly-defined gun control laws. Now back in the United States after serving his sentence, Cheng wants justice. Cheng, a 47-year-old Taiwanese American, was the CEO of Keyloft Inc., a New York-based company that designed game apps for smartphones. While in Beijing in April 2016, his firm started working on a first-person shooter video game app. To help his team optimize their designs, Cheng and his employees, over the course of the six-month project, bought more than 60 replica guns on Taobao, one of China’s most popular shopping platforms owned by tech giant Alibaba. None of the toy guns were lethal, according to the listed product …