Looks like sabotage more and more.
Certainly raises the probability.
No sabotage was necessary. This was more likely another case of extreme stupidity by government and government employees.
In the end this will most likely be found to have been caused by a train traveling 81 mph on a CURVED section of track that had a maximum speed of 79 mph on the STRAIGHT sections of track. The state of Washington spent nearly a billion dollars that was suppose to save a handful of mostly recreational passengers 4 minutes on the run to Seattle to Portland.
It was noted both on the practice run with dignitaries on Friday and today before the crash that the new route was actually slower than the mainline route. The train was behind schedule again this morning. My guess is that the government employee engineer was pressured to demonstrate that the Billion dollars had not been spent in vain and to pick up the pace.