Air bags have been saving lives since 1973. But after 20 years, air bags disappeared in the U.S. because the Big Three thought that air bags wouldn't cost-effective.
Now, many cars equipped air bags, but there are some problems. For example, air bags don't adjust any height of people. Short persons often get troubles.
An expert said that air-bag technology is mature and it has sort of done what it is supposed to do. More important matters that save your life is to fasten seat belts. In America, air bags saved 2,213 lives in 2012, but seat belts saved 12,174 lives.
Don't forget to fasten your seat belt and hope you drive safely.
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