the crash of flight 370 and the mystery surrounding it understandably scares everybody. the fact is, though, your drive to the airport is many, many more times dangerous than the flight. and there is a reason for that. the business of making planes, and carrying passengers, and the regularinglation of the industry is very much a tight knit community with a long tradition of learning from past mistakes, or like this anticipating them. it is requiring all aircraft operations in the u.s. be ready for it with the right transmitting equipment by 2020. it's the sort of system that could have made following 370 so much easier and like many innovations it evolved from bitter lessons learned the hard way. randi kaye reports.