Executive suicides scratch Switzerland's picture perfect veneer

By John Miller and John O'Donnell ZURICH/FRANKFURT (Reuters) - An unusual number of suicides by top executives in Switzerland has prompted introspection in its business community over how senior managers are dealing with stress as its companies struggle to retain their status in the global economy. The death last week of the former chief executive of Zurich Insurance, Martin Senn, came less than three years after the insurer's finance chief, Pierre Wauthier, took his own life. Wauthier had blame