Well I was going by the official caption but as usual
Instapundit has the real deal, a discussion over whether the key vial was the toxin or just the germ that can cause the toxin. The NY Times and the Post disagree and the early line is on the Post.
There's much confusion here, but maybe the worst point is that based on this scientist's explanation there's a cache of much worse germ starter kits out there somewhere.