I've been traveling today with Saudia from Riyadh to Arar. While in the cabin I've noticed, that the aircraft had only ONE overwing emergency exit per side. I was first quite confused and thought they changed the aircraft for an A319, but even on the safety card it was said A320 and only one exit per side was printed. It was only after landing, when I saw the airplane from outside and there were clearly TWO emergency doors over the wing, although one did not have a metallic frame around it. So my question: why blocking one of them completely? Isn't that a security issue, I mean better have more exits, just in case. As it's physically there, why not using it? From inside you could never guess, that there is another door at that part of the fuselage (t was covered completely by the interior panel), just the space between the windows was a little bit wider than usual.
A picture, where you can clearly see two doors, where one is "camouflage".
Photo © Björn Huke