I think a few airframes shot pictures in 'nam. Dont quote me on that but I know there was a recce version.

You raise a good point and I am not sure at what point, when getting shot at, the Air Force or military considers that as "combat action"! I have always been under the impression that if a war was "declared", by the powers that be, then, if you were getting shot at, I guess that would qualify for "combat action"!
Personally, I doubt if any of those guys between WW2, and Korea, which were getting chased and shot at by the Russians, would argued the point one way or the other! As far as I am concerned, when flying over the Japan sea, at night, about 28K, and CFC is tracking two MIG-17's about 30 miles behind you and closing, and you know that you are real close to the 15 mile international limit off North Korea, and your rear end is so puckered that you couldn't drive a 20 penny nail in it with a 5 lb hammer, and you are praying that those two pilots also knew where the 15 mile limit was, that to me, sir was combat! LOL