I'm not sure that this is the right section for this thread. I put it here because it will most likely directly effect waterfowl hunters.
However, in the bigger scheme of things, I see this as an attack on the military and the munitions used. While the study of the negative effects of metal left in wounds is relevant to recovery. The implications are to ban effective munitions.
The misuse of a study like this resulting in a projectile ban for target shooters and hunters is disturbing and has already proven effective here in the states.