Not only at Sohae and at Kangson, but now Sanumdong just north of Pyongyang is recently proving problematic. They are just shifting these facilities around in a shell game, offering to give up others they leave as obsolete. Gotta hand it to the little buggers.
With some of it, remote heat sensing and visual satellite confirmation tends to show Kim was shifting these around and ramping up activity even as talks with the US were continuing. Stuff like this cannot happen without his sign off.
No surprise at all though. It was a known fact he was insincere from the outset. Many people just chose not to listen and got swept up in the confetti and general hoopla but I cant half blame them I guess
Our surveillance of the sites is FAR better than this image.
Most people would simply not believe our capabilities.