> For a secretive regime like North Korea, the green armored train was a dead give away. This week, Kim Jong-un made a trip to meet Chinese president, Xi Jinping, in the slow train almost identical to the one his father used. Chinese official scrambled to keep the journey quiet from the moment Kim crossed the border on Sunday at the city of Dandong.
And as he and his wife Ri Sol-ju likely traveled for 14 hours to the capital. Beijing has not disclosed the route he took, but Reuters has mapped a path of train delays and likely connections through populated areas and big cities. As Brenda Goh reports, despite all the secrecy, the trip was hardly secret.
>> The closest Chinese city to North Korea is the city of Dien Dong and it's connected to North Korea by a bridge called the Friendship Bridge. On Sunday, residents in Dandong told us something strange was going on at the train station in Dandong. Authorities were putting up scaffolding to block a view that you normally get of the train.
And also, a hotel in Dandong whose view directly faces the bridge were told by the authorities that they are not allowed to book guests on those few days. The railway bureaus were warning commuters there would be these delays, and in the comments people were talking about how is this because of a visitor from North Korea.
But the post, they were talking about delays with the leader, and after the next few days you couldn't even send posts about the delays on the railway lines to your friends. Something was going on, but you couldn't really talk about it.>> Kim went on a whirlwind tour of Beijing during his visit where for a day mysterious convoys were often flanked by high security.
Under Beijing's watch, Kim managed to remain hidden until officials announced the visit a day later.