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The discovery of radioactive tissue boxes at Bed, Bath & Beyond Inc. (BBBY) stores in January raised alarms among nuclear security officials and company executives over the growing global threat of contaminated scrap metal.

While the U.S. home-furnishing retailer recalled the boutique boxes from 200 stores nationwide without any reports of injury, the incident highlighted one of the topics drawing world leaders to a nuclear security meeting in Seoul on March 26-27. The bi-annual summit, convened by President Barack Obama for the first time in 2010, seeks to stem the flow of atomic material that has been lost, stolen or discarded as trash.

As U.S. and European leaders tackle the proliferation of weapons-grade uranium or plutonium in countries like Iran and North Korea, industries are confronting the impact of loose nuclear material in an international scrap-metal market worth at least $140 billion, according to the Brussels-based Bureau of International Recycling. Radioactive items used to power medical, military and industrial hardware are melted down and used in goods, driving up company costs as they withdraw tainted products and threatening the public’s health. ‘Major Risk’ “The major risk we face in our industry is radiation,” said Paul de Bruin, radiation-safety chief for Jewometaal Stainless Processing BV, one of the world’s biggest stainless- steel scrap yards. “You can talk about security all you want, but I’ve found weapons-grade uranium in scrap. Where was the security?”

Two years ago, the Copenhagen climate summit was alive with the belief that an agreement would be reached. No such expectations have been voiced in Durban, where climate negotiations seem beset by political complacency and the prospect of failure. Yet scientists' warnings have never been clearer. Organisations such as the Royal Society, Nasa, the Met Office, the national science academies of virtually every country on the planet – as well as several dozen Nobel laureates – have made it clear they think greenhouse gases are having a major impact on the planet.