It's that time of year again. Airline Weekly Editor Madhu Unnikrishnan and Senior Analyst Jay Shabat look back on the year that was. It was yet another tumultuous year in this industry we love: Storied names like Thomas Cook, among others, went out of business, and the B737 MAX — one of the world's best-selling aircraft — was grounded. Can anyone make low-cost, longhaul flights work? Will Boeing ever build the new midsize airplane (NMA)? Listen to our final podcast of the year to find out.