Plutonium was discovered in the US in 1941 when scientists exposed uranium to neutron radiation in a laboratory. There is nothing natural about it, and has only been in the environment since the first atomic bomb was detonated in the US in 1945...

The International Atomic Energy Agency attempts to keep track of all kinds of radioactive materials as they move around the globe. However as the world's nuclear reactors continue to produce waste, and the nuclear five nations persist in having a...

"Nuclear terrorism is still often treated as science fiction - I wish it were. But unfortunately we live in a world of excess hazardous materials and abundant technological know-how, in which some terrorists clearly state their intention to...

All commercial nuclear reactors of the present generation are based on designs originally developed for military plutonium production or for the propulsion of nuclear submarines or other navy vessels. Although there are different ways of...