Lemnitzer began his briefing, charts ready, pointer poised. First the big picture: This is the Mekong Valley. Pointer tip hit the map. Hilsman, watching, noticed something, the point tip was not on the Mekong Valley, it was on the Yangtze Valley. Hilsman rose, went to the board, took the pointer. “General,” he said, “you’re mistaken, the Mekong Valley is right here.” A switch of the pointer.

