Change:
1. <ins> Censorship is where an entity in a position of power - such as a government, organization, or individual - supresses communication that it considers objectionable, harmful, sensitive, politically incorrect or inconvenient.  (While censors that engage in censorship or establish censorship regimes must do so through legal, military, or other sources of power, this document focuses largely on technical mechanisms used to achieve network censorship.) </ins> This document describes the technical mechanisms used by censorship <del> regimes around the world to block or degrade Internet traffic (see </del> <ins> regimes around the world to block or impair Internet traffic (see </ins> RFC7754 for a discussion of Internet blocking and filtering in terms of Internet architecture).  To that end, we describe three elements <del> of Internet censorship: aggregation, identification, and prevention. Aggregation is the process by which censors determine what they should block, i.e. they decide to block a list of pornographic websites.  Identification is the process by which censors determine whether content is blocked, i.e. the censor blocks all webpages containing "sex" in the title.  Prevention is the process by which the censor intercedes in communication and prevents access to censored materials. </del> <ins> of Internet censorship: prescription, identification, and interference.  Prescription is the process by which censors determine what types of material they should block, i.e. they decide to block a list of pornographic websites.  Identification is the process by which censors classify specific traffic to be blocked or impaird, i.e. the censor blocks or impairs all webpages containing "sex" in the title or traffic to sex.com.  Interference is the process by which the censor intercedes in communication and prevents access to censored materials by blocking access or impairing the connection. </ins> 2. <del> Aggregation is the process of figuring out what censors would like to block Glanville-2008.  Generally, censors aggregate "to block" </del> <ins> Prescription is the process of figuring out what censors would like to block Glanville-2008.  Generally, censors aggregate "to block" </ins> information in blacklists or using real-time heuristic assessment of content Ding-1999.  There are typically three types of blacklists: Keyword, Domain Name, or IP.  Keyword and Domain Name blocking take

Discussion:
…nce. defines censorship. fixes definition of identification in intro.
First, one thing that isn’t clear immediately from the introduction is who/what is a “censor”. I find it a little strange, actually, to suggest that a censor performs "aggregation". Is the censor an ISP? A government? Something else? For example, a government may have loose policies about what kind of content to censor (e.g., "hate speech"). An ISP might in turn implement these loose policies in different ways. Policies can also differ across a country, etc. The other terms---identification and prevention---are similarly confusing, although I think the term "identification" isn't as problematic as its (incorrect?) definition in the introduction. "Identification is the process by which censors determine whether content is blocked" - NO. I think it is the process by which a censor might classify traffic to determine whether to block a traffic flow or now. I would suggest something like: prescription, identification, and interference.
Wondering what you think about "design, identification, and interference"? I think for the purposes of todays 20:00 ET IETF drafts deadline, I'll change the terminology throughout to match prescription, identification, and interference and I'll correct the other things mentioned here (define censor, fix definition of identification in intro).
That seems a bit more clear, indeed! Ah, I didn't realize there was a deadline of today 2000h. Not sure I can get you a pull request by then, but will try.
I'll leave this open. You by no means need to get a pull request by 20:00! I just want to do my best to make changes responsive to your feedback. I'll leave this open and you can see what I've done (I'll be working on trying to clear out issues until then), and feel free to submit changes as you think are needed.