Certainly some of the conditions you mentioned would be easier, although it would be costly to have presumptive conditions. You'd save on the administrative side, but you'd pay a lot more on the program side.
I understand that Veterans Affairs is looking into this. That was the reasoning for that study in the first place, to look at what other countries were doing in terms of presumptive rulings.
I have been retired from Veterans Affairs for a year and a half, so I am not sure where that is right now.
Dr. Courchesne or Ms. MacKinnon might know more about that.