I want to know if a tariff can be applied to the current outsourcing situation. I think it can. If it were more expensive to hire indians (and other non Americans) to take all of our phone calls about tech support (& etc.) then those jobs would come back.
When I say "make it more expensive," I mean make it prohibitively more expensive. Make it cost many times the amount of an American worker. Those jobs would come back so fast, it would make your head spin.
I don't think that is understood to apply to services. India built itself in this grey area.