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A viral Justin Bieber parody is highlighting problems with prescription painkiller addiction in the United States. Z Dogg MD is a real doctor who uses a rap alter ego to discuss medical issues, and his new song has received over a million hits at a time when congress is debating whether to invest in a series of new treatment programmes. Plus, we look at how a viral photo has started a conversation about poverty in the central Asian country of Kyrgyzstan, and investigate why a Chinese company has threatened to fire any staff members who buy the new iPhone. (Photo/Credit: ZDoggMD)