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In his New Year address on Tuesday, North Korean leader Kim Jong Un warned he might take a "new path" if Washington maintains sanctions amid his country's push for economic development, but experts say it may be too late to change the trajectory of negotiations.
Kim did not specify what the new approach might be. His warning may sound similar to the bellicose rhetoric that Pyongyang often deployed before last year's summit, but he cannot jeopardise the hard-won thaw and has few options beyond appealing directly to US President Donald Trump, experts say.
State media have in recent weeks accused the State
