^^^ Now I've been reminded by Mr Google, I do remember it. Albeit, hazily.
Don't get me wrong. I'm not saying that terrorists couldn't or wouldn't use an indiscriminate bacterium to attack their ideological enemies. I'm simply suggesting that (a) it doesn't seem to fit the current modus operandi of international terrorists and (b) the effective administration of a targeted biological attack would require an degree of sophistication not yet seen.
I hope I'm right. Not because I can say, 'I told you so', but because the alternative (as stokemaveric postulates above) is appalling.