japans nukelear plants melt down

the earth quake that happend to japan in the past couple of days has greatly affected 3 out of 6 nukeular power plants like fukushima diichi, nationwide, fukushima daini. today fukushima diichis power reactior jusst exploded and is releasing radioactive waves into the air and now the citizens of japan have to get tests to se if they were poisend by radiation. the way a nuculur reaction would melt dow is the water that cycles through the container and the water flow slows down enough that the extream heat boiled the wayer hot enough to melt down the inside of the core. the usa has sent over 2 nukelear experts to asist japan in cooling the core to prevent it from exploding. (www.cnn.com), (www.cnbc.com), (www.npr.com)