Have y'all read Tom Clancy's "Rainbow Six"? It's about some real nasty eco-freaks.
Haven't read any Tom Clancy. Suppose I should remedy that some day...though I'm not much for super detailed scientific jargon.
On the other hand, I love Michael Crichton in spite of the technical jargon...so maybe I'd enjoy Clancy. Crichton's State of Fear is *excellent*.