Consider the possibility that since Smallpox has been eradicated for forty years, someone in that lab may have thought nothing of the vials in there until after

Consider the possibility that since Smallpox has been eradicated for forty years, someone in that lab may have thought nothing of the vials in there until after seeing the recent chatter about it, triggering a Baader-Meinhof Phenomenon in the lab worker, leading them to reporting the dangerous vials.