I don't really care who is behind the sabotage, they would certainly not admit it for obvious reasons, and it could be more complex than it seems.
But the press, here in the UK, in France and in the US, has been suspiciously "clueless", avoiding with great care to imply that anyone in the west could be behind it, even if it really seems obvious that it could very well be the case.
Why? Why are they so careful? They usually are not afraid to speculate, especially on such a scale.
I find it disturbing to think that they could either have received instructions from their respective governments or are simply afraid push any inquiries on this subject.
The US loves its military, but American news sources have no want to keep a secret like this on behalf of the government. The US media loves to report on US war crimes, and other stupid government shit
It wouldn't surprise me to know that the US government had knowledge of this. It would surprise me if they were directly involved though.