"North Korea has made no new commitments to denuclearisation, and in fact has backed away from its previous commitments", Abraham Denmark, Asia Program director of the Woodrow Wilson International Center for Scholars, told a House committee in late June.
"The officials' assessments stand in stark contrast to that of US President Donald Trump, who declared following the June 12 summit with Kim that there is no longer a nuclear threat" from North Korea.
John Bolton said top USA diplomat Mike Pompeo will be discussing that plan with North Korea in the near future.
"If they have the strategic decision already made to do that and they're cooperative, we can move very quickly", he said.
Secretary of state Mike Pompeo has tried to walk that statement back, but Pompeo has also falsely tweeted on Saturday that Kim Jong-un had agreed to "fully verified denuclearization" - which again, would be pretty hard to do without having an actual agreement in place. The Financial Times reported that Pompeo was due to visit North Korea this week but Reuters has not been able to confirm his travel plans.
However, the officials believed North Korea was "positioning itself to extract every concession it can from the Trump administration - while clinging to nuclear weapons it believes are essential to survival", NBC News reported.
Samantha Vinograd, President Barack Obama's former Director for Iraq on the National Security Council warned that North Korea is deceiving President Donald Trump and he doesn't seem too anxious about it.
"President Trump told us 'North Korea is no longer a nuclear threat, '" Murphy said.More news: McConnell predicts Supreme Court nominee will be confirmed
Evidence collected since the pair's historic meeting points to secret production facilities and the development of methods to conceal weapons creation - implying Pyongyang is aiming to hide plans to continue its nuclear program from the USA, having made contrary, if ambiguous, commitments to Washington.
"But there's not any. starry eyed feeling among the group doing this that we're well, well aware of what the North Koreans have done in the past", he added. But North Korean officials are suggesting that they declare far fewer.
On Friday, NBC News reported that U.S. intelligence officials believe the North had ramped up enrichment and is planning on keeping secret nuclear facilities hidden and operational.
However, one official pointed out that, despite the assessment, the talks between the US and North Korea were positive and Kim's decision to destroy a major missile-testing site and suspend nuclear and missile tests were a step forward. They also pointed out that North Korea has made similar agreements in the past, only to renege.
"I finished the North Korea-U.S. summit meeting successfully, so we'd like your country to make efforts to get the sanctions lifted as soon as possible", he was quoted as saying.
Watch above, via Fox News.
A photo taken on May 24, 2018 shows a general view of a dust cloud surrounding the area near the entrance to a tunnel at North Korea's Punggye-ri nuclear test facility, during a demolition "ceremony".
"Putin's about to meet Trump in Finland, so he could think, 'OK, I'll show up".