China’s exit-and-entry system just got a significant update. As of Tuesday, citizens can be blocked from leaving the country if officials judge them a risk to “industrial or technological security,” a category that did not previously carry this kind of weight in exit-ban law. This is not a blanket travel ban. Most people crossing Chinese borders this week will notice nothing different. But for a specific slice of the population, particularly those working in tech, trade, and sensitive research, the legal risk of an overseas trip has changed. Background Exit…
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