I'll preface by saying that the USA freedom act will pass because congress does not like finding out when an agency is going behind their backs, and also voting against it is electoral suicide in close districts. So, in my opinion a calling campaign is a gestural action.

That said, fighting an information war against intelligence apparatus is a losing battle. This will only push the program deeper into the classified bowels of the massive US intelligence machine. They are currently operating through classified intelligence and loopholes, and once the FISA court loophole is closed they will find or produce another.