[Drunk_Engineer]

The problem is that NTSB has a bizarro prioritization scheme. They have spent huge efforts investigating things like hot air balloon crashes, and even Harrison Ford's crash landing a vintage airplane into a golf course. The crazier the incident, the more likely they investigate -- which is completely opposite of how they should be prioritizing. The result is that the common, everyday rear-end car crashes are just written off.

[tick_tock_tick]

It's not hard to figure out the companies themselves and other agency work well enough at solving the common reproducible errors the NTSB focuses on the edge cases that would otherwise go unanswered.

[Drunk_Engineer]

The US has one of the worst road safety records of any modern industrialized country. The reason is that other agencies have actually not solved the "common reproducible" errors at all.