I would also like to add that as long as each country follows this logic, that is they can only obtain warrants for customers in their own jurisdiction and that

I would also like to add that as long as each country follows this logic, that is they can only obtain warrants for customers in their own jurisdiction and that the company in question must operate in the country of origin then there is very limited ability for this to be abused. That is it would prevent say China requesting emails from a US Citizen because they have no jurisdiction of them.