It's been revealed that the top security advisors of South Korea, the U.S. and Japan, met over the weekend in San Francisco to discuss the upcoming talks with North Korea.
For more on this, we have on the line Kwon Jang-ho, who is at the Unification Ministry.
Jang-ho,

Good morning, Mark.
A Blue House spokesperson informed reporters just a couple of hours ago that Chung Eui-yong, Seoul's national security advisor, had flown to San Francisco on Saturday, and held a closed door meeting with his U.S. and Japanese counterparts, H.R. McMaster and Shotaro Yachi.
They were said to have discussed the denuclearization of the Korean peninsula, and also coordinate efforts in preparing for the landmark inter-Korean summit in April, and the U.S.-North Korea summit in May.
The spokesperson said the three advisors also agreed to, quote, "not repeat their past failures."

This is the latest in a number of trips that has been taken by Chung and South Korean officials to gear up for these talks.
It's already the second time Chung has visited the U.S. since he acted as a special envoy and met with North Korean leader, Kim Jong-un in Pyongyang earlier this month.
He's also had trips to China and Russia to brief them on the situation.
Another special envoy visited Japan on a similar agenda.
And earlier last week, Seoul's foreign minister, Kang Kyung-wha met with her U.S. and Japanese counterparts in Washington.

It's a result of the surprising and sudden way U.S. President Trump accepted Kim Jong-un's invitation to meet, and with so much to prepare for such an unprecedented event in such a short space of time, we can expect more of such meetings in the coming weeks.
Back to you, Mark.