BBC Radio 4

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Without us realising, an enormous DNA database has been created online. It holds the secrets of your true identity and promises to reveal untold family connections. But what happens when online ancestry tests reveal more than you had bargained for?Across six episodes, Jenny Kleeman meets the men and women whose lives changed forever after they opened a box that contained a DNA test. Exposing scandals, upending identities, solving mysteries and delivering life-changing news - Jenny investigates what happens when genealogy, technology and identity collide.

http://www.bbc.co.uk/programmes/p0gd2dgb