Irradication can prolong the shelf life of perishable foods such as strawberries.

But it is also used to clean up dirty food - such as substandard Asian frog's legs or bacteria-laden burgers - which has led to consumer resistance.

Worse by far is the risk of radioactive food.

What has been learned from nuclear accidents, like Chernobyl or weapons test sites in Kazakhstan, about how to remove radioactivity from the food chain?

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	Food irradiation