You know, as a scientist or even just a rational person, you believe or are trained that you have to have evidence and conclusive studies before you make a decision.... Thats all fine and good... but dont you think you've made some pretty good decisions through the years on hunches. Sometimes things just make sense.
We KNOW lead is not a nice substance. It has all sorts of ill effects on living organisms. There are great alternatives to using lead in about every application, especially concerning hunting. So why not just make that choice? Help cut back on the lead contamination of the environment in general... Just from bits of reading I've done recently concerning birds and raptors in general, I'd say Fish and Wildlife Service will make this decision for us in the near future. (several years)