The Brazilian air force located debris that authorities say is likely wreckage from the Air France jet that crashed into the Atlantic. One investigator says the black boxes from the airplane may never be found, which means we might never get an explanation for the crash.
John Hansman, Jr. is a professor of aeronautics and astronautics at MIT, and director of the school's International Center for Air Transportation. He has the latest details on what we do know about flight 447.
Tell us: Does this accident affect your decision to fly, and would that change if you knew the cause of the crash?