Despite all the best efforts of the media to turn Japan's tragedy into a great big scare the UN body responsible for monitoring nuclear radiation has said that there is as yet nothing to worry about:

RADIATION levels being detected in Japan and beyond in the wake of Japan’s post-earthquake nuclear crisis do not pose any harm to human health, an IAEA expert says.

“Regular dose information is now being received from 47 Japanese cities,” Graham Andrew, scientific and technical adviser to the head of the International Atomic Energy Agency, said.

“Dose rates in Tokyo and other cities remain far from levels which would require action. In other words, they are not dangerous to human health.”

The IAEA has just sent a radiation monitoring team to Japan to help authorities determine whether any dangerous radiation has been released from the stricken Fukushima nuclear plant, 250km northeast of Tokyo.

“First measurements in Tokyo showed no indication of iodine 131 or cesium 137. These are fission products which come from the fuel,” Mr Andrew said.

In fact there have been more health problems from self-medication on iodine to counteract a perceived thyroid cancer risk- caused by the fear-mongering media- than have been caused by the nuclear power station woes.