Despite undiplomatic discourse, Trump's dance card is full

FILE PHOTO - U.S. President Donald Trump looks on during his meeting with South Korean president Moon Jae-in during the U.N. General Assembly in New York, U.S., September 21, 2017. REUTERS/Kevin Lamarque

UNITED NATIONS (Reuters) - A subtle diplomat like Talleyrand, Donald Trump is not.

The U.S. president, in his first foray at the U.N. General Assembly, derided North Korean leader Kim Jong Un as a "rocket man ... on a suicide mission" and delivered an unabashed defence of sovereignty at the seat of global multilateralism.