Air Force grounds B-1 bombers due to safety concerns
https://www.washingtontimes.com/news/2018/jun/8/air-force-grounds-b-1-bombers-due-safety-concerns-/
Air Force grounds B-1 bombers due to safety concerns
https://www.washingtontimes.com/news/2018/jun/8/air-force-grounds-b-1-bombers-due-safety-concerns-/
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