I thought below was the question being asked in the initial post in this thread to which an answer was sought:
What evidence (needn’t even be proof, since the two words have different meanings) can any of the above muster for the assertion that Ekdahl did anything other than his traveling electrical consultant job for EBASCO? As in, you know, intel? And perhaps you could hazard a guess why he would take (a) Marguerite with him while doing this TOP SECRET work?