1. Is anonymity a necessary condition for privacy? Is it sufficient? Consider the concrete example of web browsing: if a user communicated purely over something like Tor, what, if any, of their privacy is not protected?

2. Taking this thought a bit further, suppose we modified the Internet so that *all* communication took place over an anonymous channel. What might some benefits be? What might some challenges be, technical, political, economic, or otherwise? To put it another way, what or *who* would keep this from becoming a reality? (Give a couple benefits and challenges (or argue why there are none); there may not even be a "complete" answer to this question.)

3. Suppose you can place colluding participants anywhere of your choosing in a DC-Net. How many do you need to uncover a target user's coin flip?