USA had the strongest motivation to destroy the pipeline.
The complicity of mainstream media in official narratives in recent years is the biggest danger to freedom. Suppression of free speech is being codified into laws. Sadly Scotland is leading the way in some respects. It's heartbreaking to see what has happened to the cradle of the Enlightenment.
There are rumours (no more than that at present) of journalists being arrested for reporting on the train derailment that has led to huge chemical contamination in Ohio.