China recently launched a crackdown on the use of software which allows users to get around its heavy internet censorship. And now app developers are finding themselves under growing pressure. The three plain-clothes policemen tracked him down using a web address. They came to his house and demanded to see his computer. They told him to take down the app he was selling on Apple's App Store, and filmed it as it was happening.
His crime was to develop and sell a piece of software that allows people to get round the tough restrictions that limit access to the internet in China. A virtual private network (VPN) uses servers abroad to provide a secure link to the internet. It's essential in China if you want to access parts of the outside world like Facebook, Gmail or YouTube, all of which are blocked on the mainland.