Four candidates contending to replace UN Secretary General Antonio Gutteres were questioned for hours in New York this past week about their views on global issues and leadership as part of the selection process for the chief administration position.The candidates - Argentina's Rafael Grossi, who currently serves as the head of the International Atomic Energy Agency, Chile's Michelle Bachelet, Costa Rica's Rebeca Grynspan, and Senegal's Macky Sall - fielded questions tailored to probe their