Here's a thought. Figures as of right now indicate a radiation release of around 90,000 becquerels from the big quake that struck the TEPCO nuclear facility last week.
The radiation in your body that is there from potassium, radium, etc. from the environment is around 6,000 Bq. In other words, the radiation release in Japan was less than that of a bus of school children driving down the road.
TEPCO stock has dropped hard.
People are eventually going to figure out that the reactors at this plant functioned beautifully - they shut down safely during a huge quake.
TEPCO stock is priced in Yen, a currency that has been appreciating against the dollar recently.
You do the the math...