“Title 42 is only the most recent of a long history of using health concerns as a justification for free movement restrictions," says Elizabeth Cohen, professor of political science. "For example, it was only in 2010 that restrictions were removed on the entry of persons who are HIV positive."

"People are looking for that kind of connection, and if they can find it with a group that they don't know online, they don't necessarily see the bad parts of what's happening," says Shana Gadarian, professor and chair of political science. "Then with the technological part of it where extreme voices get more airtime on the internet, you can see how people get radicalized."

"Over the last 15 years or so, we've seen some policies aimed at promoting its [renminbi] international use, but we've also seen a lot of policies that make it less attractive," says Daniel McDowell, associate professor of political science.