A group of people suffering low white blood cells as a result of exposure to cobalt 60 radiation in Samut Prakan (Thailand) will sue the owner of the radioactive material and the atomic energy agency for putting their lives at risk.Four people who were exposed to the opened cobalt 60 cylinder at a scrap metal shop in Soi Wat Mahawong in Samut Prakan will ask the Law Society of Thailand to take legal action on their behalf against the Office of Atomic Energy for Peace (OAEP) and Kamol Sukosol Electric Co.