A Van -
1. You are saying there should have been fighters present to protect the bomber? Why? If the aircraft had stayed in Syrian air space there wouldn't be a problem and Turkmens don't have any fighter aircraft do they?
2.
It was clear that there was no other intention except for just making a quick short-cut.
Blimey! That's okay then!
What would Russia do if a U.S. aircraft took a 'short cut' over part of it's territory? Also the bombers were using a 'short cut' over Turkey in the process of attacking Turkish speaking people who are fighting ISIS as well as Assad! Bit silly really.
3.
Sad to see foolish propaganda here that the Russians are not attacking the ISIL
You mean 'were' not attacking ISIS.
You know perfectly well the first phase of the bombing campaign was aimed at the rebels --
who are fighting ISIS as well as Assad!!. The bombing campaign changed after Metrojet but is still aimed at keeping Assad in power. This is why the jet that was shot down was bombing Turkmens. You want to keep your lovely bases in Tartus and Latakia and don't want those nasty rebels taking them away from you!
4. I have no time for the Erdogans. They will get their comeuppance at some stage.