There was a commentary on a cable TV show about a secret report describing how U.S. Navy divers blew up the Nordstream 2 pipeline. So far, it has been ignored by the mainstream news outlets. Is that disinformation to cover up rather than reveal the true authors of that mystery?

You are seeing this with accuracy via your intuition that this story is a plant as part of a cover-up, so nothing of value will come from probing into this further. As you know, denials by government spokespersons is a formality that can never be trusted unequivocally. There are always exceptions where truth needs to be avoided, and that is because your government is not serving the public but the Extraterrestrial Alliance, first and foremost. This is rationalized by those humans involved believing what they do and say is serving themselves and their own power, having been made to believe it is in the best interests of the nation for them to be at the helm in charge of things, and whatever they do will be for the public's own good, even if that is logically untrue on its face. Keep in mind this is all orchestrated via mind control manipulation and that can be used to convince people black is white and white is black, if need be.