we get the latest on these studies from rick schmitt, a reporter for fairwarning.org. k you very much for being with us. first of all, why did your organization decide to undertake this study? >> well, we were impressed by the growth in the number of motorcycle deaths, essentially a doubling the number of people dying from motorcycle accidents since the mid-1990s. what made it particularly interesting to us was the fact that the number of people dying in car accidents, as you mentioned, has declined and, in fact, is at a low that we haven't seen since the 1940s. so you have two divergent trends. we seem to be doing a better job when it comes to regular auto safety but a poorer job when it comes to motorcycle safety. so we looked into some of the sources and influence of those divergent trends. >> woodruff: what did you find about theatç correlation of the number of deaths and not wearing or wearing helmets? >> well, it's sort of like the same old story in a way. it was underscored by a recent c.d.c. report, as you mentioned, that if it's not a silver bullet wearing a h