Artist Ai Weiwei makes map of China from milk tins

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In 2008, tainted milk killed six babies and made another 300,000 infants sick in China. Since then, Chinese parents have been searching for safe baby food beyond the mainland, from Hong Kong and as far away as the UK.

The artist Ai Weiwei has explored the issue in his latest piece - a map of China made entirely out of tins of formula milk.

Jennifer Pak reports from Hong Kong.

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