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Boeing CEO Dennis Muilenburg (1st R, front) looks back at the family members of 737 Max crash victims as he attends a hearing before U.S. Senate Committee on Commerce, Science and Transportation on Capitol Hill in Washington D.C., the United States, Oct. 29, 2019. Dennis Muilenburg acknowledged mistakes as he testified before the U.S. Congress for the first time since two deadly air crashes of Boeing 737 Max planes that killed 346 people, but he deflected tough questions such as why the company withheld details about its flawed new automated system. (Photo by Ting Shen/Xinhua)
