An executive from Japan's embattled Takata Corp. said Thursday a national recall of driver's side air bags is not necessary, NBC News reported. In testimony before the Senate Commerce Committee, Takata's quality chief, Hiroshi Shimizu, said the recall should focus on "specific regions of high absolute humidity." Some air bags manufactured by the company can inflate with too much force, spraying shrapnel into passengers. Takata and automakers have issued recalls for the air bags in areas of high absolute humidity, but some safety experts and lawmakers have argued that given the mobility of American drivers, geographic recalls are too limited.