Hello folks.
Newbie to the JREF forums here. I'm from Argentina, one of the countries whose president was supposedly targeted by the "cancer ray" so I can tell you many local political forums and blogs down here are literally alive with the most outrageous conspiracy theories as I write this. I try my best to debunk the nutters but I'm having some trouble with two of the proposed mechanisms of action of the "weapon":
1) Food. Many people think it's not irrational to consider the possibility of poisoning alla Litvinenko. Of course, that was radiation poisoning, not cancer, but what about a smaller dose or a less radioactive substance? One weak enough to produce no symptoms and go undetected in the body but strong enough to significantly increase the chances of developing cancer in the short term? Can this be possible with just one dose, or must be repeated over time to have a chance to work?
2) Harmful substances in microphones. One particularly nasty nutcase suggested (not before calling me every rotten name he could think of) there must be a plan to slowly eliminate leftist leaders in the region, and since those presidents meet between themselves a lot it would be relatively easy for an spy or secret agent to conceal a radioactive or carcinogenic agent on or inside the microphones they use to pronounce their brilliant speeches. The main problem is the device would need to be removed/deactivated when a right-wing president takes the microphone, but other than that I don't think I have enough info to evaluate the plausibility of this mechanism. Assuming that such a device exists, and exposes to dangerous radiation to everyone who uses the microphone for the duration of an average presidential speech, could just one exposure be enough to significantly increase the risk of cancer, or the "dose" would have to be repeated?
So, what do you guys/gals think? I'm quite sure this is total bunk, but sometimes the conspirationists get very creative and the refutations are far from obvious.
Kind regards,
Ernesto.
Hi Ernesto,
first, welcome to the JREF!
Radioactivity can cause cancer, but it would not make a good stealth weapon, because it is always a pretty random process: Either you acumulate a very high dose that will quickly give you cancer - but will not stop at one cancer, but make you sick throughout, and you'll exhibit more symptoms of radio poisoning like Litvinenko; then it's not stealthy. Or you administer lower doses that will simply increase your risk of cancer - in that case, you have too little control over whether it will work quickly and lethally enough. Because radiation only increases the liklelihood of getting cancer.
As far as dosage is concerned, I think it doesn't matter much if you contract radioactive doses in one large dose or many small doses. By and large, it's the sum of doses that determines your cancer risk. It would however matter much on the particular chemical
elelements and isotopes. If you pick one that the body quickly flushes through and that has a long half-life, you'd be better off giving doses continually, if you use a substance that the body retains for a long time (perhaps calcium in bones?), or that has a short half-life / high activity, one dose might suffice.
Another question concerns the choice of chemical substance. In radio medicine, they have plenty of tricks to transport radioactive materials to specific locations or systems in your body (ETA: include radio isotopes in particular sugars, proteins, enzymes etc.). Some may thus go exclusively to the blood, or the brain, or the lymphatic system (ETA: or areas of specific activity such as active cancer metabolism, healing, mental activity), etc. High-tech cancer terrorists could thus target specific organs or systems, and at the same time increase the accuracy with which thay apply a dose.
I think however that a surer way to induce cancer is the use of carcinogenic chemicals, simply because such substances can be applied a lot more specifically than the random-shooting of radioactivity. Such chemicals would ONLY give you cancer, and not any other symptoms that might give their presence away.
(Of course I believe not one second that anybody is actually doing any such stuff to the presidents of Latin America; just trying to answer your question.)