Why are US Intelligence services promoting this theory? It would mean they’ve been backing a country that violated the NATO joint aggression treaty.
The US isn’t pushing this theory.
> Why are US Intelligence services promoting this theory?
They aren’t. Unidentified sources of unknown affiliation cited in German media are claiming that US learned about a Ukrainian plot from Dutch intelligence and told Ukraine not to do it.
You are confusing the subject of the story with its source.
Huh? It's totally plausible. I don't believe it, but it's certainly plausible. Just how much explosives do you think it would have required? Even small personal boats can easily carry several tons of cargo, and that is more than enough to trash some pipes. I'm really struggling to think why and how you could think this implausible.