Egads, the topics that come up when you haven't been reading the list for awhile. <br><br>With all due respect to Beachdoc, I wouldn't run out buying KI tablets just for the heck of it. The "experts" in these matters, such as the National Council on Radiation Protection and Measurements (NCRP) has recommended against such practices. The reason is that you must compare risks.<br><br>The risk of a nuclear weapon detonation is percieved to be low. The risk of a catastrophic meltdown of a power plant is almost non-existant. The risk of a succesful terrorist attack on a plant that would release significant amounts of iodine is also incredibly small. Most experts agree that the most likely terrorist weapon of this sort will be a "dirty bomb" of radioactive materials dispersed by conventional explosives. Radioiodine would not be a likely choice for these weapons, but rather Cesium or cobalt. KI tablets won't do anything to protect from these isotopes.<br><br>Additionally, while risk of thyroid cancer incidents may be high, survival of thyroid cancer is over 99% with medical treatment. If you have thyroid cancer, a physician will give you radioiodine to destroy your thyroid gland. You will have to take drugs to replace the hormones the thyroid produces, but you will be fine. So risk of death is low.<br><br>Balance these risks with the fact that although harmless to most people, there are also many people who may have severe allergies to iodine, with reactions that can even be fatal. Again, the risk is small, but iodine allergies are fairly common, as I am sure Beachdoc can attest. Please understand what the risks are before loading up with iodine.<br><br>I can certainly understand everyones desire to be prepared for a radiological incident (especially in this group), but there is alot of misinformation out there, and the risks are not as great as the media makes them out to be. Please do not always believe what you read on a website somewhere, especially if they are trying to sell you something.<br><br>If you have questions about radiation effects, feel free to ask. Just make sure the person you ask knows what they are talking about.<br><br>Have a good one!<br><br>Greg Sackett<br>Certified Health Physicist<br>Radiation Safety Officer<br>University of Maryland Baltimore