Friday on "20/20" I talk to Michael Crichton about his new book, "State of Fear," which made me laugh with delight, because the villains are ... well, I won't tell, because I don't want to give the plot away. But finally! A star Hollywood writer/producer is scientifically literate. The "Jurassic Park" author spent three years doing climate research and discovered what he'd heard about global warming made little sense. But he almost didn't write "State of Fear" because he knew it would anger his friends. I'm glad he wrote it, and OK, I'll give it away: the villains are environmental groups! What a switch! In my interview with Crichton, he says: "environmental organizations are fomenting false fears in order to promote agendas and raise money."