China recently eased some of its strict zero-COVID policies after unprecedented protests erupted in several parts of the country. For weeks, there were demonstrations against three years of constant PCR testing and reporting, travel restrictions and citywide quarantines, nonstop tracking and surveillance of citizens. Now, Chinese authorities are deploying some of the same tools they used to limit the spread of COVID-19 to track down demonstrators who have been speaking out against the government in public and online. Marketplace’s Kimberly Adams speaks with Marketplace’s China correspondent, Jennifer Pak, who’s been covering this story from Shanghai. Pak gave Adams a quick rundown of how the surveillance is being carried out.