@alan This is also why I'm more opposed to corporate datamining than government surveillance.
NSA, at least on paper, has my best interests at heart. They're looking for foreign terrorists and spies and couldn't care less about the cat gifs I'm sending to a friend. I'm boring and they're not supposed to be looking at me anyway.
But corporate spies have a fiduciary obligation to their shareholders to datamine everything they can learn about me and exploit that information to serve their financial ends, typically to my detriment. They're actively seeking to harm me and they certainly aren't legally obligated to ignore me because I'm a US citizen on US soil.