Description
It has never been safer to fly on commercial airlines, according to a new study by an MIT professor that tracks the continued decrease in passenger fatalities around the globe.
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{"id"=>631, "level_no"=>1, "level_title"=>"chapter 01 ", "notes"=>"<p>It has never been safer to fly on commercial airlines, according to a new study by an MIT professor that tracks the continued decrease in passenger fatalities around the globe.</p>", "challenge_id"=>329, "created_at"=>Fri, 24 Jan 2020 17:31:10.075898000 UTC +00:00, "updated_at"=>Fri, 24 Jan 2020 17:31:10.075898000 UTC +00:00}