As many countries have loosened their COVID-19 restrictions and reopened their borders, the demand for travel is high. Meanwhile, there are hundreds of flights getting canceled and delayed on a daily basis across the globe. A shortage in airline staff, especially pilots, is a big reason why. Pilots took to the picket lines this week to protest this shortage. They are also frustrated by stalled contract negotiations and strained pilot schedules.NPR's Ari Shapiro spoke to Captain Casey Murray from Southwest Airlines Pilots Association about what has caused this shortage.Airline companies are having to get creative in their efforts to recruit, hire and retain pilots. NPR's David Schaper reports about how one major airline opened its own flight school. Additional reporting in this episode came from Amanda Andrews at George Public Broadcasting.In participating regions, you'll also hear a local news segment to help you make sense of what's going on in your community.Email us at considerthis@npr.org.