That being the problem. If somebody starts throwing polonium around, well, it's a very short list of possible candidates, is it not?
Now, if there's a sudden outbreak of a nasty cholera variant in Eastern Ukraine ... is that the Russians ethnically cleansing territory? Is that the Ukrainians conducting a scorched earth defence? Not too easy to tell, is it?
That being the problem. If somebody starts throwing polonium around, well, it's a very short list of possible candidates, is it not?
Now, if there's a sudden outbreak of a nasty cholera variant in Eastern Ukraine ... is that the Russians ethnically cleansing territory? Is that the Ukrainians conducting a scorched earth defence? Not too easy to tell, is it?