Black Box: The Invention Born from GriefA mysterious crash and a son's quest to hear the dead.

From the show

The Secret Life of Objects

After his father vanished in an unexplained plane crash, David Warren became obsessed with the idea that the dead could tell tales. He invented a device to record the final moments of a flight, only to be shunned by pilots and authorities who feared "Big Brother." Today, his orange box is the only witness we trust.