He probably gave them all the info he had on his first day. After that he wasn’t valuable as an intel asset. The only other thing he offered was a bargaining chip which NK found out was not much of one. At that point it was just easier for NK to cut their losses and turn him over to the US.
Yeah, they are not known for just letting go of someone for no reason. This guy must have been dusty balls useless
He probably gave them all the info he had on his first day. After that he wasn’t valuable as an intel asset. The only other thing he offered was a bargaining chip which NK found out was not much of one. At that point it was just easier for NK to cut their losses and turn him over to the US.
Probably the propaganda effect was done and they realised he had no use for him in intelligence either.