two children who suffered the worst burns were medivaced to a hospital in boston. we see stories every year. of course, the holiday means people across the country are hitting the road. triple a says 35 million americans are traveling via car for this 4th of july, gas prices $3.33 a gallon. actually down 22 cents from a year ago. but it is a different story for people taking a flight. gas prices are going down at the same time that airfare is going up. so this may be the summer that people actually get back to taking road trips. road trip. and travelers are watching their wallets when they get where they re going and planning to spend 7% less on their trips than a year ago. a new look at crash statistics confirms july 4 is the deadliest day on american roads. for everyone behind the wheel, some welcome news about road safety and the latest high-tech equipment being built into cars. abc s jim avila went for a test run.