This week, my new article with Eric Jardine and Gareth Owenson, “The potential harms of the Tor anonymity network cluster disproportionately in free countries,” came out in PNAS. Using a global sample of Tor users, we show that a higher percentage of Tor clients in politically free countries go to hidden services sites than in less free countries. Past studies have shown that much of the traffic to hidden services sites goes to cryptomarkets and child abuse imagery sites. The corollary is that higher % of clients in repressive regimes use Tor to access the surface web.