Biggest Global Risk?

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Donald Trump winning the US presidency is considered one of the top 10 risks facing the world. What are the biggest risks to your world? As the UK outlines plans to introduce a sugar tax, we ask if it works in countries where child obesity is a problem. And a row in the Dominican Republic over the US Ambassador there visiting a school, accompanied by his husband. Image: Republican presidential candidate Donald Trump at a press conference in West Palm Beach, Florida Credit: Reuters