I think its already been said here on PPRuNe, but the latest news coming out of Afghanistan is that OBL has been mixing a soupcon of Anthrax in with the Heroin, Brown, "H", Smack, Scag, Scat, China white, Junk, Powder, Horse, etc......
Nb. Afghanistan is a major producer of the stuff, i.e. it's practically their only major export (after terrorism).
So, if true, all you drugies had better enjoy that next fix / dragon-chase, as it might very well be one of your last - and I have to say that there certainly seems to be a poetic justice about it !