Former NTSB investigator explains a new theory about Malaysian Airlines
Alan Diehl, who investigated plane crashes for more than 30 years, wrote a book "Best Laid Plans" about his theory about what happened to the aircraft that vanished 10 years ago.
Dr. Alan Diehl, who investigated plane crashes for more than 30 years, wrote a book "Best Laid Plans" about his theory about what happened to the aircraft that vanished 10 years ago.
