ANYONE wondering why the US and North Korea are threatening each other with nuclear devastation might contemplate Donald Trump’s latest Twitter comments.

“My first order as president was to renovate and modernise our nuclear arsenal. It is now far stronger and more powerful than ever before,” he boasted.

One provision of the nuclear Non-Proliferation Treaty (NPT) ratified in 1970 and renewed indefinitely in 1995 was that the five acknowledged nuclear powers “pursue in good faith and bring to a conclusion negotiations leading to nuclear disarmament in all its aspects under strict and effective international control.”