Lead NTSB Investigator Jason Aguilera says no possible causes of Saturday's air show crash in Ohio have been ruled out. He says the investigation will look for possible causes linked to 'man, machine ... more 
Lead NTSB Investigator Jason Aguilera says no possible causes of Saturday's air show crash in Ohio have been ruled out. He says the investigation will look for possible causes linked to 'man, machine and the environment.' (June 24) less 
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Mon, Jun 24, 2013 6:02 AM EDT