Originally Posted by
Sunfish
I think it is safe to assume that whoever dosed Litvinenko with Polonium is himself already dead.
God help us if anyone else has been contaminated with it.
It is worth bearing in mind that Polonium 210 emits alpha particles which do not pass through the skin. Alpha emitters need to be ingested or inhaled to cause serious harm.
So until it is explained exactly where these "traces" of radioactivity were found it's hard to know whether people are likely to be in significant danger.