BBC: Half a kilometre below ground in the Champagne-Ardenne region of eastern France, near the village of Bure, a network of tunnels and galleries is being hacked out of the 160 million-year-old compacted clay rocks.
The dusty subterranean science laboratory built by the French nuclear waste agency Andra is designed to find out whether this could be the final resting place for most of France's highly radioactive waste, the deadly remains of more than half a century of nuclear energy.
Emerging from...