Simon carefully avoided making eye contact, in a way that suggested, to Willem’s perhaps over-sensitive mind, that confidential sources and methods were involved. He would not speak of these. But he had not come unprepared for the question. "You would expect," he said, "to see seismographic evidence of those detonations. And we have seen it. It’s quite clear. It tells us where we might go and search, were we so inclined, for debris—shattered containers or other residue left on the bottom of the sea. No doubt we shall. We’ll coordinate any such efforts with the Royal Dutch Navy, it goes without saying. But we don’t need to, really. The spikes on the seismograph tracings are as distinct as the sound of rifle shots in the forecourt of Buckingham Palace."