In the 70's, Jan Smuts only had one terminal but it had a high viewing area just under the roof. While setting up to take some pictures of the apron with its, 707;s, 727's and the first A300's I was accosted by some dubious characters in suits who not so politely asked my to pack away my camera and leave immediately, or they would need to escort me to a place where I could be interviewed. I left...
Later in the early 90's, I stayed some 5 km from the airport, I would nip over to the back fence and try to catch the jets landing on the new parallel runway. It was a challenge to shake off the white van which seemed to be forever trying to catch me in the act. I never had the bottle to do anything on the Denel side since that place was seriously overmanned with guards packing heat.
IG