Officials with the U.S. National Highway Traffic Safety Administration (NHTSA) argued at a hearing in October that inflators produced by the two air bag manufacturers, ARC Automotive and Delphi Automotive, should be recalled because they may rupture and send metal fragments flying. The issue is linked to one U.S fatality and seven injuries, NHTSA said, following an eight-year government investigation. If the recall proceeds, it would be the second-largest in U.S. history.