[ChadGore]

Re: The possibilities, as described by three intelligence officials, include releasing an undetectable biological agent such as smallpox or anthrax aboard a plane that passengers would then unknowingly spread

Anthrax is not contagious.

Smallpox is contagious, and I'm not making that up.

[NittanyLion]

Smallpox is contagious, and I'm not making that up.

I never stated otherwise. But anthrax most assuredly is not. When I see a glaring and obvious error at the outset of an article, it calls the integrity of said article into question.