Cause of deadly South Korean plane crash remains unknown
Former NTSB investigator Alan Diehl joins 'Fox & Friends' to weigh in as the U.S. and South Korea probe the crash that killed 179 people. Graphic Content Warning
Former NTSB investigator Alan Diehl joins 'Fox & Friends' to weigh in as the U.S. and South Korea probe the crash that killed 179 people. Graphic Content Warning
