The US sabotage of Nordstream 1 and 2 demonstrates how low the US is willing to go in its quest for world dominance.
Only a state actor is capable of carrying out a terrorist act in the middle of the ocean. Consider what might happen if internet cables in the ocean are tampered with.
The same people who brought you COVID considered it, and Russia was supposed to bear the brunt of the blame.

Last year, the World Economic Forum teamed up with global banks to run a high-profile cyberattack simulation that targeted the financial industry, an actual event that would pave the way for a “reset” of the global economy.
The simulation, named Cyber Polygon[/b], may have been more than a typical planning exercise and bears similarities to the WEF-sponsored pandemic simulation Event 201 that briefly preceded the COVID-19 crisis.
The World Economic Forum simulated a scenario in which the internet is shut down by an extremist state actor[...insert [b]Russia].
A false flag operation occurs when a state commits an act while falsely blaming another state actor. You blame others for what you are doing or about to do.
When Bashar Al Assad was accused of using chemical weapons, the US President bombed Syria without conducting any investigation.

“A cyber attack with COVID-like characteristics would spread faster and farther than any biological virus” — World Economic Forum, 2021


https://www.youtube.com/watch?v=-0oZA1B3ooI

I guess America blew up the pipe because they believe Germany or the European Union could cave in to Russia demands during the winter.
America gains more in the war than their Europeans counterpart

It suits Germany. That's the price you pay when you dine with the devil. They can now get their gas 7 timed the price from Uncle Sam.