I like the suggestion someone here had: The exercise terrorist group would be "EMMA: Enemies of Mystery Meat Association."
Yeah, see, I think the point is they're so worried about being offensive to some groups but obviously homeschoolers are fair targets.
Maybe they should have used a fake group called "Wacko Chemist Geeks Out to Destroy the World" or maybe the "Insane Scientist Coalition of Message Board Posters".