The trailer resonated with a deep boom, felt rather than heard. All the flimsy bits, of which there were many, rattled and buzzed. Amelia pivoted toward a window, more curious than alarmed. "ANFO," T.R. said. "We use tons of it. You get used to it." He turned back to Willem. "It’s a smartass, gotcha question, as I think a man of your sophistication knows, Dr. Castelein. ‘Bad things’ can mean a drought, a flood, a heat wave, a cold snap. Bad things tend to be localized in time and space. Harder to predict. But we can predict them to some extent. And the more sites we have operational, the more knobs and levers we have on the dashboard, so to speak. So instead of just blundering around we are managing the situation to maximize the good and minimize the bad."