I greatly enjoyed the class debate passages (p. 92-93, 175-182) in Little Brother. In the first debate, Marcus brings up the effects of terrorism and the problems with reactions to it.
Marcus' argument about the effects of terrorism involves the types of reactions societies have to acts of terrorism. Post-attack, his school system decides to install cameras in every classroom and hallway. He argues that this reaction gives into the terrorists' goals, because it fosters fear in the students and does nothing to truly protect them. In general, I agree with Marcus. The cameras give a false sense of security, pretending to be preventative measures when in truth they can do nothing to defend the students in the event of an attack, or to prevent one from happening. All the cameras do is watch and wait, ready to catch evidence to incriminate terrorists, which will be of no comfort to the victims of the attack. Therefore, the cameras are not much more than constant reminders of the events of the past and of all the fear there is to be felt in this world.
This concept reminds me of the heightened security after terrorist attacks, like 9/11. Post-9/11, airport security was entirely remade, and incredibly tight procedures were created. However, while some of these procedures can prevent and protect, they have their issues. The new procedures in any post-attack scenario increase security on the target of the attack--in this case, planes. The problem is, airports and planes are just one potential target, and it's unlikely that, having used that method, a terrorist group will choose to use it again. This isn't to say that increased security and tightened protocols are poor uses of resources. They are, of course, necessary and good. However, they do not automatically mean that everyone is safe. In fact, it seems to me that even as new security measures are important, they also allow the terrorists to accomplish their goal. Without the precautions, we leave ourselves open to other attacks via the same battle-tested methods. However, with the precautions, we focus our attention on one group of targets, associate fear with said targets for some period of time, and use valuable (but necessary) resources to defend them, without any real knowledge of the next potential target. These are the problems of being on the defensive, but they are issues to which I believe cryptography can hold the answers.