§Politics,
power and empires is the short answer.
§When
the science of traffic safety became a threat to the status quo of NHTSA in the early 90Õs, the USDOT ceased all new research that could possibly come to any conclusion contrary to their agendas or supporting constituentÕs self-interest.
§Then
USDOT disbanded and or subjugated the FHWA safety teams and researchers, changed the way data was reported, including FARS causations, spent hundreds of millions to reinforce their public safety myths with new faux research and position papers.