For the intellectual, politician or celebrity, a tempting proposition this year is a trip to Fidel Castro's Cuba, where a visitor can see real revolution in action while enjoying the uncrowded comforts of a winter resort. The invitation usually comes from an overseas official of Castro's July 26 movement, who arrives bearing a free, first-class ticket on Cubana
Airlines and free reservations at such luxury hotels as the Habana Hilton. At rum-punch receptions and over dinners of Morro crab, the friendly visitor soaks up heady talk of revolution, sometimes from the "maximum...