It isn't easy for the average non-technical user to avoid things like the NSA. Free hardware designs are just too young to be popular at the moment and the internet is not a safe road for photons or electrons. And worst of all, an official Free Hardware Foundation does not yet exist.
This program would communicate between its users, sending all kinds of things without getting in our way. A bot like this can't exhaust the NSA's resources but it can do something much worse. This bot can turn useful information about people into useless information about something that might be a robot, another robot, or a human being. This bot can turn the unconstitutional gathering of information into a joke. Finding specific details or identifying legitimate structure in chaos becomes a task for which clever new thinking is required, therefore tiring the NSA.
Detection of the bot can be avoided by encrypting messages, disabling phone sensors, confusing time stamps, or allowing this robot to learn and mimic your sharing behavior. For maximum effect this robot should be available for web servers, desktops, desktop browsers, mobile devices, wearable tech, TVs, and computerized vehicles. Oh what fun :)