Former NTSB investigator on Boeing crash: Iran may need help from US, Boeing

There are still a lot of questions surrounding the crash of the Boeing 737-800 jet in Iran. The cause is unclear, with a variety of conflicting reports being released and Tehran has signaled that it will not turn over the black box flight recorders to Boeing or the United States. Greg Feith, former investigator with the National Transportation Safety Board, and CNBC's Phil LeBeau join "Squawk Box" to discuss what might come next in the investigation.
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Thu, Jan 9 20209:13 AM EST