Chernobyl disaster: the 32nd anniversary of the accident
Chernobyl, Ukraine (former USSR): Exactly 32 years ago, on the 26th of April in 1986, the nightshift crew of reactor 4 at the Chernobyl Nuclear Power Plant in Pripyet was doing some very risky power-failure simulations, and they shut off several safety systems for these "tests". Unfortunately, the reactor became uncrontollable whilst these experiments, and eventually reactor block 4 blew up, sending tons of highly radioactive material into the environment.
Watch this short clip to get an idea what was going on at the plant site after the accident. Use CC to get English closed captions!
https://en.wikipedia.org/wiki/Chernobyl_disaster