Days That Shocked the World

In March 2011, Japan was hit by a devastating tsunami killing 20,000 and triggering a nuclear meltdown. Survivors and witnesses tell their extraordinary stories.

The tsunami provokes a major meltdown at the local nuclear facility. What happened to the safeguards? What went wrong at Fukushima?

In April 1986, a huge explosion at Chernobyl blasted radioactive dust into the atmosphere

Chernobyl left wreckage that will be radioactive for 20,000 years. But what caused it?