Dumb question...if it's O.K. with Turkey, what the hell do we care???/ Russia is no friend of anyone by their own choice...we are...If a Canadian plane flies into the U.S., we don't get upset....if a Russian plane does so without authorization, we might just blow it up.....
I don’t think we would just blow up a Russian plane traversing our air space, but would warn and escort from the area.
Russia, Turkey, and NATO are supposed to be on the same side, though it looks like Turkey and NATO are stealthily backing ISIL. Turkey cannot constantly violate Syrian and Greek air space but shoot down a Russian plane that at most traveled over its territory for a few seconds. Turkey is not at war with Russia.