Growing political advertising strategy

Evan Halper writes an eye-opener article on a growing political advertising strategy, geofencing. Please read the article (link above) and respond to the questions below. 1. What are your sentiments about geofencing as a advertising tool? 2. How does geofencing change political campaigning? 3. The article mentions privacy concerns over geofencing; however, how can we use this method of advertising to serve a greater good? 4. What guidelines would you establish to regulate geofencing?