When Liu Hu recently tried to book a flight, he was told he was banned from flying because he was on the list of untrustworthy people. Liu is a journalist who was ordered by a court to apologize for a series of tweets he wrote and was then told his apology was insincere.

“I can’t buy property. My child can’t go to a private school,” he said. “You feel you’re being controlled by the list all the time.”

And the list is now getting longer as every Chinese citizen is being assigned a social credit score — a fluctuating rating based on a range of behaviors. It’s believed that community service and buying Chinese-made products can raise your score. Fraud, tax evasion and smoking in non-smoking areas can drop it.