"Clearly a charm offensive, and I think it behooves us and our Korean allies not to be charmed and consider North Korea for the regime it is and to deal with it on the basis of fact and not charm", Harris said.
North Korea's leader said he wants to boost the "warm climate of reconciliation and dialogue" with South Korea after his high-level delegation returned from a visit to the South, as his foes reiterated the need to keep up maximum pressure and sanctions. This is, Rogin pointed out, differs from the prior position of the US, that the USA would only engage with the North if it made concessions on denuclearization first.
A back channel of diplomatic communication between North Korea and the State Department has remained open since President Donald Trump took office a year ago, but the only substantive talks reported to date were in the first half of last year over the fate of several Americans in North Korean custody.
Pence and the US delegation in Pyeongchang, South Korea, did not meet with North Korean officials during the trip, despite the vice president not ruling out the possibility last week.
Pence endorsed a change of tactics after Moon assured him the North Koreans wouldn't get economic or diplomatic benefits just for talking - they must take concrete steps toward denuclearization.
The delegation, whose members included Kim's younger sister and close aide Kim Yo Jong and North Korean ceremonial leader Kim Yong Nam, met with Moon on Saturday during their three-day trip through Sunday.
He also said it was a win for Moon's administration, which has prioritized engaging with the North Koreans.
"I have launched hundreds of campaigns and activities to let people know about the human rights situation in North Korea, but President Trump's address has marked a milestone in North Korea's human rights", he said.
"The goal is denuclearisation and the process is dialogue for dialogue, action for action, so if North Korea does not show actions, the United States and Japan will not change their policies", he said.
Moon held four meetings with Kim Yo-jong and the North Korean delegation, showing the desire for relations to move positively forward.
PYEONGCHANG, South Korea Winners at the Pyeongchang Olympics don't immediately receive their medals after an event.
Mr Ji said the president's gesture raised global awareness of their fight to escape the North, as well as grim situations facing other North Koreans.