Ping Fu was just eight years old when her life was turned upside down by Mao's cultural revolution. She endured years of abuse before being thrown out of China.
Three decades later she is an adviser to President Barack Obama on innovation and is one of America's most celebrated female entrepreneurs.
She founded the company Geomagic which is revolutionising the manufacturing process in the digital age using 3D printing. She says the technology "is as big as steam engines... as big as the internet".
You can watch the full interview on the BBC News Channel at 04:30 GMT on Tuesday, 29 January and 00:30 GMT on Wednesday, 30 January.
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