Forget rogue nations, when it comes to biological weapons attacks we should be looking much closer to home.
MUCH closer.
My 21-month-old had the sniffles on Thursday and Friday. By Sunday, no trace remained - except for the ugly head-cold his mother has been battling since the early hours of Sunday morning and my now-incessantly runny rose. Damn kids. Damn daycare. I think I've had more colds in the last 21 months than the last 21 years.
Anyway, think about it. Who suspects toddlers? (other than parents of toddlers, I mean). Perfect delivery vehicle - sprint randomly about, touching people and surface at random, asymptomatic until painfully contagious, and quickly recover from the ill-effects prior to exfiltration from hostile territory.
If North Korea ever gets their hands on a toddler, we're all screwed.