Chinese nationals?
DC-3?
U.S. has/had a military base near Keflavik. Were they OPENLY spying back then, like they are today (at Key West).
I was an electronics technician on the Navy communications base at Keflavik in ‘63 and ‘64, long before the plane crash mentioned in this story. I walked out of my room one morning in ‘63 and met someone in the hallway who told me that the president had been shot. I think it was a guy named Johnson who told me. Shortly after that I heard someone say that they thought a guy from Texas named Lyndon Johnson had something to do with it. Every rumor imaginable was floating around that base within minutes.