Kosutic said.“It’s an art,” he replied, tapping the pad. “Despreaux’s blood pressure and heart beat both increase, they’re having an argument. Heart beat increases, and blood pressure drops, and they’re . . . not.”“What about Roger?” the sergeant major asked.“To tell you the truth, he’s scary,” Julian said. “The whole time, his heartbeat never changed within any sort of standard of variation. Steady fifty-two beats per minute. That’s the lowest in the company, by the way. And his blood pressure barely flickered. You can’t tell anything about what he’s thinking or feeling from biometrics. Spooky.”“He gets angry,” Kosutic said. “I’ve seen it.”“Sure,” the sergeant agreed, flipping the pad closed. “And when he does, he’s still got ice water running in his veins.”“Hmmm. You know, I think we’re just starting to understand why you don’t want to pock with a MacClintock.”Thousands of years before the coming of the race called Man, the mountain had been fire.