No telephone. No television. No intrusions from the outside world. Or so Costa Rican President Oscar Arias Sanchez thought when he, his wife Margarita and their two young children settled into a remote beach house on the Pacific coast for a long weekend. Did he ever get it wrong. Through a complicated patchwork of radio signals, Arias was contacted from the capital city of San Jose by his younger brother Rodrigo, who serves as his chief of staff. "They've given you the Nobel Peace Prize," shouted Rodrigo.
"No, no, I don't believe it," the President said. "They're probably just saying I'm...