Mystery note from a Chinese prisoner in a Walmart purse

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You buy a purse at Walmart. There's a note inside, apparently from a prisoner in China, saying 'I made your nice new bag and I'm incarcerated in terrible conditions and the guards are stealing my food'. What do you do? What does Walmart do? For journalist Rossalyn Warren that letter led to a detective operation that took her halfway around the world in search of answers. (Image: Red purse, Credit: Getty Images)