All fatal plane accidents are tragic, and all are newsworthy. But every so often, a disaster happens that is so large in scope or so shrouded in mystery, that it captures the attention of the world. Take a look at three explosive air disasters that made headline news and put massive pressure on crash investigators during a new episode of Air Disasters, Sunday at 8/7c! | Smithsonian Channel Aviation Nation

Air Crash Investigation | special report | s04e04 | risky runways