SANTIAGO, Chile - The king of Spain told Venezuelan President Hugo Chavez to "shut up" Saturday during a heated exchange at a summit of leaders from Latin America, Spain and Portugal. Chavez, who called President Bush the "devil" on the floor of the United Nations last year, triggered the exchange by repeatedly referring to former Spanish Prime Minister Jose Maria Aznar as a "fascist." Aznar, a conservative who was an ally of Bush as prime minister, "is a fascist," Chavez said in a speech at the Ibero-American summit in Santiago, Chile. "Fascists are not human. A snake is more human."...