We relied on data from the Aviation Safety Network, a private, independent initiative founded in 1996 to keep a public database of accidents.

BBC: A record year in airline safety

L.D. database on your second screen device accessing personnel files, comic book origins andexclusive interactive content with The Avengers Initiative: A Marvel SecondScreen Experience.

ENGADGET: The Avengers Initiative Second Screen app goes live on iTunes in time for Comic-Con