$(2)$ Privacy advocates support Do Not Track regulations. You can explore this concept by looking for Do Not Track at

www$.$eff.org or Wikipedia. What are the similarities and differences between Do Not Track and Do Not Call?

$3$ The location of digital devices can be pinpointed using three different, but complementary, technologies: GPS$,$ cell$-$tower triangulation, and WPS$.$ Use Wikipedia and other online resources to explore these technologies. How would you describe each technology?

$(4)$ Tracking usually happens behind the scenes, often without a user's knowledge or approval. However, information that people intentionally post online can also be used to track their locations. Think about the information that you post on your social networking and media sharing sites. How might that information be used to determine your location or track your movements?