We know that there is an increased incidence in ALS in those who have served in the U.S. military.
Have any other countries studied to see if that is the case in their military veterans?
If there have been no such studies, would some not seem like an urgent need? If there have been such studies, the world is all ears to hear about them.
Is it a military phenomenon or an American military phenomenon? It would seem that the answer to that question might yield some important clues.