John and I really do agree much more than we disagree, and not the least amongst our agreements is that a helmet as a piece of PPE, is the least effective means of injury prevention.
Take a look at this video and consider, this particular area has amongst the least amount of head injuries to cyclists in the world
http://www.youtube.com/watch?v=qj8uz...eature=related
Too much attention is being paid to one of the least effective means to achieve an end and much of that effort detracts from what should be the real goal. Cyclist safety. That doesn't necessarily mean a cyclist should make wearing a helmet a priority.