Philosopher Jeremy Bentham came up with the idea of the Panopticon: a prison where a guard is located in a tower. He can see all the prisoners, but the prisoners can not see him. In addition, the prisoners are not aware if they are being watched or not. As a result, prisoners act on their best behavior. Some have equated the idea of the Panopticon to Internet surveillance. I agree with Walker's argument that you can not compare the two.
The main fault in this analogy is the fact that citizens are unaware of the fact that the government can look at their Internet data. We are mostly ignorant to the exact magnitude of the government's surveillance abilities. As a result, people do not try to make their search history particularly clean or innocent. In addition, I believe that if people were aware that the government was watching their online activity, most individuals would not alter their actions much as the average person is not doing anything illegal online.
Another issue with the Panopticon metaphor is that the prisoners are completely isolated from one another. The Internet has the complete opposite effect on its users, actually bringing people together and connecting individuals on a level never seen before in history. Because of this connection, individuals are able to share their ideas of surveillance. If someone becomes suspicious of their privacy, they would be able to share their sentiments with other Internet users.