Earlier quoted context omitted.
Don't worry. It wasn't the US. Not really our style. Sure, the CIA pulls dirty tricks, but those are quiet, in-the-shadows skullduggery where no one's paying attention. CIA doesn't do big and loud where other Americans can see it. Plus, motivations are wrong. The US catastrophically ends European energy dependence on Russia so that... it can compete with the Middle East and Russia and Canada on a more equal footing?…
There is Stuxnet and its predecessor, which blew up a pipeline! https://www.washingtonpost.com/archive/politics/2004/02/27/r... The U.S. motivation is that it has tried to shut down energy trades between the Soviet Union/Russia and Germany for more than 50 years.
It's worth keeping in mind that the pipeline was also pretty much dormant anyway, the official nord stream data has it that flow collapsed around june, down to exactly 0 (by their books, there was still pressure in the pipe) kWh per day by September.