What to know about the investigation into the midair collision near D.C.
Former NTSB chairman Robert Sumwalt, who is a CBS News transportation safety expert and analyst, joins "CBS Mornings" to break down the latest in the midair collision investigation and what officials will look for at the crash site.
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Former NTSB chairman Robert Sumwalt, who is a CBS News transportation safety expert and analyst, joins "CBS Mornings" to break down the latest in the midair collision investigation and what officials will look for at the crash site.
