Well this is what I think happenned. Only my view mind, but it answers a few questions. Im talking about the red bull crash. Ok here goes:-
I think towards the end the red bull powere that be decided(for whatever reason) that they wanted Vettel to overtake Mark and take the win. They told the engineers of each driver that this is what should happen and please inform their drivers. Vettel's engineer informed him. marks engineer didnt-he couldn bring himself to do that. So now we have Vettel expecting to be allowed past (this would account for the over aggresive turn in when Mark didnt make it easy, and it would account for the loony gesture). It would also account for Horner mouthing "MOVE" into his screen, and it would account for the immediate blame being placed on mark by all the red bull team. he was supposed to move over. And it would also account for the cuddling of Vettel on the pit wall instead of tellin him he'd been a pr!ck.It was arranged for him, mark should have moved. Mark knowing nothing of any such 'arrangement' held and defended his line.
To me that fits the reactions of all concerned. Whilst it explains Vettels reactions after the crash(they told me I could go past!)It doesnt excuse the fact that he would accept a win in such a fashion.The most confusing and dismaying part of all this was red bull's reaction to the incident, but this would explain it, they were expecting a done deal! 
Bad form red Bull!! how many suppoters have you just lost around the world? Especially in australia!
Be interested in anyone else's views on this.
I guess its all a matter of knowing WHY was Vettel faster than Mark (we know Mark was on fuel save, but was he really?). In the case that he was really on fuel save, and not Vettel, then a strategy (of allowing Vettel past) made sense, given Lewis was pushing both of them (ie had Lewis got past Vettel and with Mark on fuel save, then Lewis could have easily taken the win). So basically, to me it all depends on the real reason Vettel was faster than Mark. As I saw it in the race, i simply thought vettel was faster and thats it.
In the case of Mclaren it could have been similar. Mclaren told Lewis he wasnt going to be taken by Jenson. But when jenson approached, Lewis could have gotten all hot headed and taken themselves out, either on Jenson's pass or on the re-pass. And there would have been a full blame mess (ie 'loco' gesturing and so on) because of the confusing team signals. But for example, we dont know for sure what was Jenson's fuel condition (even after their passes). The difference was, that both Mclaren drivers weren't under pressure (from a competitor) when the incident happened, and of course that they made their passes very well.
Both of the incidents COULD be due to team strategy, or team orders... depending on some of the little things we dont know.
Came out fighting indeed.
in fact, even if they did wanted it to happen i think it was reasonable to think if Webber was the one holding Vettel then he should have made some way. I'm not too sure as to why Webber would hav been slowing him down... but there was a threat from Lewis and Vettel was being held up. MAYBE it was reasonable to let Vettel develop his own pace.