There's an assurance that Trump won't follow through with his nuclear weapon testing comments.
The US President posted on social media saying he has no choice but to restart testing, because of other countries' testing programs.
It follows him denouncing Russia for testing a nuclear-powered missile, which the Kremlin denies.
Centre for European Policy Analysis Security Analyst Edward Lucas says if Trump followed through, it would be hugely destabilising.
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The Mike Hosking Breakfast