A Western diplomat in Phnom-Penh recently described the Khmer Rouge as "the most mysterious of the world's successful revolutionary movements." Few if any Westerners know which of the principal elements in the insurgent forceCambodian nationalist, Cambodian Marxist or doctrinaire Communistwill emerge triumphant. Moreover, their leaders are enigmatic figures whose views and personalities, for the most part, are far less understood than those of their political counterparts in Hanoi, Moscow or Peking.
A notable exception is exiled Prince Norodom Sihanouk, the titular head of the Khmer insurgents and unquestionably the most popular man in...