EnginKorkmaz/iStock, Etienne Oliveau/Getty Images, Samantha Lee/Business Insider The Chinese Communist Party has long sought to suppress ideas that could undermine the sweeping authority it has over its 1.4 billion citizens — and the state can go to extreme lengths to maintain its grip. In just the past few years, the government has attempted to muzzle critics by making them disappear without a trace, ordering people to physically barge into their houses, or locking up those close to critics as a kind of blackmail. Even leaving China isn't always enough.