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Retracing the Path Toxic Powder Took To Food in China

SHIJIAZHUANG, China -- Xue Jianzhong never posted a sign on his ground-floor shop, but somehow everyone knew what he was selling. Customers from all over this dairy farming region in the northeastern province of Hebei flocked to Xue's dusty street to buy special concoctions that he said would make...

By Maureen Fan and Ariana Eunjung Cha

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