A fatal plane crash in Northwest Iran has left 168 people dead. The Caspian Air flight was headed from Tehran to the Armenian capital of Yerevan; it crashed 16 minutes after departure. Caspian, a 16-year-old commercial airline, operates within Iran and to Syria, Turkey, Ukraine, the United Arab Emirates and Armenia, using Russian-made Tupolev jets. For more, The Takeaway turns to Borzou Daragahi, Beirut bureau chief for the LA Times. Also joining the conversation is Graham Warwick, senior technology editor of Aviation Week. There have been four major crashes in six weeks: are planes not as safe as we think?