I mean, it makes no sense for USA to attack the Norway pipes, that's for sure. That would be an attack on just Germany, not Russia. Blowing up the Nord Stream is still an attack on Germany, but it seems to me that USA considers that acceptable collateral damage, perhaps even punishment for remaining dependant on Russian gas despite Trump's warnings years ago. While other nations have slowly done what they can to decrease dependence on Russia, Germany helped finance the Nord Stream 2 project. They had this coming.