When Saroo Brierley used Google Earth to find his long-lost home town half a world away, he made global headlines. Saroo had become lost on a train in India at the age of five. Not knowing the name of his family or where he was from, he survived for weeks on the streets of Kolkata, before being taken into an orphanage and adopted by a couple in Australia. Despite being happy in his new family, Saroo always wondered about his origins. He spent hours...