As much as I detest both EF! and ELF (and have published articles to that effect), as far as I know this statement is false. As I understand it, the material detected so far IS weaponized Anthrax: the particle size is too small and uniform for it to be otherwise. I like Tom, and have had extended conversations with the man. He is a fair and balanced human being who would not make this attribution falsely. That said, if this crucial fact is wrong, the whole article falls apart as a mere projected association.
There is indication of possible ecoterrorism only last year in the form of a scrapie infestation among Mid-Western sheep herders. From what I see, it is an effort to force meat production offshore and into the hands of third world producers dominated by large American corporations. The same thing is happening in the beef market with imports through Mexico under NAFTA. I shudder to think of the kind of bioterrorism that could be accomplished from inside a Mexican packing plant.