Without going too into it… Ricin bombs aren’t dirty bombs or anything that would require uranium, or a big explosive. Ricin is a naturally derived poison that does really nasty stuff to people, it’s been used a couple of times by terrorists. (Sadly, it would likely kill more than 2-3 people. :-()
I wouldn’t really consider it a bioweapon myself since ricin doesn’t self-replicate; it’s a poison gas attack which is horrific and terrible in it’s own right and rightfully deserving of terrorist charges. But on the other hand, I’m not exactly crying that the guilty, guilty terrorists might get some extra time for a spec that doesn’t really apply.
