A current Boeing employee claims that the company tried to shield broken or out-of-specification 737 Max plane parts from regulators and lost track of them, according to a Senate subcommittee investigation made public Tuesday. This latest whistleblower came forward hours before Boeing CEO Dave Calhoun testifies on Capitol Hill amid growing questions over the safety of Boeing's aircraft. Democratic Sen. Richard Blumenthal chairs the subcommittee holding the hearing and joins Sara Sidner to discuss.
