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...