... H.CHAPTER I. USE OF THE INTERNET FOR TERRORIST PURPOSES7 the use of propaganda, whether communicated in person or via the Internet, over time. The length of time and the effectiveness of the propaganda ... of participants in the attacks of 11 September 2001 in the United States.27. The use of the Internet in furtherance of the execution of acts of terrorism may, inter alia, offer logistical advantages, ... subject of analysis.C . Uses of the Internet for countering terrorist activity29. While terrorists have developed many ways to use the Internet in furtherance of illicit purposes, their use of the...