In the new history podcast, "Unsolved Histories: What Happened to Flight 293?" a team led by Seattle historian Feliks Banel tells the story of Northwest Airlines Flight 293. The Military Air Transport Service (MATS) charter flight was supposed to make the trip between McChord Air Force Base near Tacoma, Washington, and Elmendorf Air Force Base in Anchorage, Alaska. But it never got to Anchorage.