Just doing some reading on ricin. I was under the impression that it had to be injected to be lethal but deh wiki sez it can be inhaled, too, and kill that way. Hmm...who knew? Not me.
Well, anyway...I still find it hard to believe that ricin is the same killer as anthrax. Certainly we would have heard about it as an airborne killer before now. When the anthrax scare happened the only thing they talked about as regards ricin was how it was used to kill some guy the Russians hated...injected it with a needle on the end of an umbrella or something. Guy died a few days later.