US spies are buying Americans’ data – Congress has a new chance to stop it
So on the side of wanting easy access to American data -  - People in the gov who want to monitor the general populace for dissent
  - Power hungry individuals and governments
  - Governments wanting to learn about their foreign adversaries/allies
  - People in the gov who want to monitor other gov agents for whatever reason
  - Corporations wanting to learn about their adversaries
  - Corporations wanting to maximize their profits
  - Corporations wanting to learn about their users for whatever reasons
  - And so on and on.

On the side of limiting access to user data -  - People wanting privacy

Don't want to sound too pessimistic but I can't help it.