Greenpeace USA nuclear policy specialist, Jim Riccio, answers questions during a press conference in Seoul on the use of faulty superalloy Inconel 600 and the risk it pose to Korean nuclear power plants.

Greenpeace in Korea launches the 'Stop Risky Nukes!' campaign to demand the Korean government and the Korea Hydro and Nuclear Power (KHNP) to stop operating nuclear power plants that uses Inconel 600, a material with critical flaws. Greenpeace demands the Korean government launch an investigation on the reactors that use this defective material, make the findings public, ensure that suppliers pay the cost of replacement, and maintain effective and active control and regulation of the Nuclear Safety and Security Commission.