272 million people worldwide live outside their country of birth, and with thousands more crossing international borders each day, some countries are running into a problem: they’re struggling to welcome more people. In some cases, this issue turned violent, leading to police and governmental organizations cracking down on immigration access. Listen to Maria Kachrimanidi and Migena Satyal, a Boston University student who is writing her thesis on Europe’s migration policies, talk about the current status of immigration policy and the future of human migration.