Nuclear power is being touted as the new green energy. However, its primary by-product, plutonium, is lethal enough for a spoonful to wipe out a city. In 1987, plutonium was first found to be leaking from a nuclear waste pit in Idaho and percolating through rock layers to a vast underground reservoir. While plutonium remains lethal for 250 thousand years from its creation, the National Engineering laboratory successfully contained it for 36 years. A 1988 New York Times article reported occurrences of the same problem in 12 other states.
1. *To drain or seep through a porous material or filter.
2. Informal To become lively or active.
3. Informal To spread slowly or gradually.
leach, filter, permeate