Sort of like the joke among those building Finland's nuclear waste repository: they'd dig a mile under the bedrock to create a storage chamber for the waste, an

Sort of like the joke among those building Finland's nuclear waste repository: they'd dig a mile under the bedrock to create a storage chamber for the waste, and what they'd find in the mining spoils would be... perfectly preserved, 500,000 year old copper canisters. Filled with formerly-radioactive waste.