JAMES CASON, head of the U.S. Interest Section in Cuba (the United States has no embassy there) has ignited a marvelous little propaganda war between the United States and Cuba, and Cuba is losing. Decrepit old dictator Fidel Castro has imprisoned 75 Cubans this year for political disobedience. Cason decided to use Christmas to remind the world of this crime. His office set up an outdoor Christmas display complete with white lights, candy canes, a Santa Claus and a large, red 75. As soon as the display was up, Fidel demanded the Americans take it down. Cason refused, and he...