As the United Nations (UN) enters its 75th year, the world is still rife with mistrust: the United States (US) remains the dominant superpower but is on the wane, while Asian power is growing in the face of an increasingly fractured Europe, with an explosive Middle East sandwiched in between.In the New York headquarters of the UN, the Cold War never really ended, as demonstrated by a scene recently observed in its hallowed hallways: a US diplomat spotted hiding behind a wall to listen in on w