What a waste of a thread's potential
Instead of serious, objective investigation, analysis, and education, there's far more petty bickering, cheap and childish ad hominems, casual dismissal of inconvenient data or ideas, and self-congratulatory dogma--chiefly on the part of a tiny but strident handful of anti-helmet partisans who drown out or ignore the voices of their more moderate and thoughtful peers. There is apparently no organized effort being made here to counter any actual helmet laws, and the idea of a middle ground or a live-and-let-live attitude is largely foreign, despite transparently disingenuous assertions to the contrary.
On to greener pastures...