Lira insists its a submarine. The only country in the world that has submarines that could do this is Russia, not the United States. They have the Paltus special purpose submarine, the Project 678 and Project 1851 miniature submarines. This assumes it was a submarine. Some other form of sabotage can not be ruled out.
The US does not have the submarines that could do this anymore, if we ever had the ability in the first place. The NR-1 had manipular arms, she retired in 2008. The Mystic DSRVs were rescue only, not undersea manipulation, they are retired too. Any ships capable of carrying small submarines near the nordstream pipelines would make headlines.
https://www.globalsecurity.org/military/world/russia/1083.htm
https://www.globalsecurity.org/military/world/russia/678.htm
http://russianships.info/eng/submarines/project_1851.htm
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Okay, the video does make some good points. Russia controls the Valve, just close it off. Destroying Infrastructure is STUPID and unnecessary. Beyond that, a very simple possibility was ignored.
Ruling out Ukraine, Germany, etc. is foolish, but seems like a low likelihood of them destroying the pipeline . A (manned) submarine is not needed. There are dozens of companies that have experience REPAIRING deep water pipelines to a depth of 3000M.
How hard would it be for some government to “borrow” one of these repair ships, send a ROV down to the pipeline, drop off a little package (to be used later) then detonate it at the “Right” time? That little bomb could easily have been there since March 2022. If you can repair a pipeline at depth, you sure as hell can blow one up.
https://www.oceaneering.com/pipeline-repair/