Please check HERE for an excellent article (very specific info on iodine and anti-oxidant supplements) on how you can help protect yourself from radiation’s effects on our bodies. This is not just about the awful disaster in Japan. We modern folks are using radiation technology increasingly to detect tumors, etc. Many people are over-radiated in the name of health.
Herbs that assist with dealing with ionizing radiation include Burdock root, Dandelion root, American Ginseng root, and Milk Thistle seed. Foods that are particularly helpful include all berries, especially blueberries and strawberries.
May all sentient beings be peaceful, happy, and healthy.