An Ecuadorean candidate for the United Nations secretary-general said on Monday that the world body remains essential but must be shrunk responsibly. Maria Fernanda Espinosa, a former foreign affairs minister and defense minister of Ecuador, is among ‌six candidates to succeed Antonio Guterres as UN chief after his term expires at the end of the year. Guterres' successor will face an enormous task of revitalizing an organization in crisis with declining stature. "I am under no illusion about the