GENEVA: The United Nations European headquarters, where a listening device was discovered in a ministerial meeting room, is probably rife with secret spying equipment, a UN security source said yesterday. "It's like Swiss cheese," a UN security source said, referring to the Swiss Emmenthal cheese which contains holes. If we had the technnical means and staff for thorough searches, I'm certain that we would find one microphone after another. The UN in New York and Vienna are the same," said the source, speaking on condition of anonymity. Marie Heuze, chief UN spokeswoman in Geneva, on Thursday confirmed the report by...