prevention might be similar as an insurmountable challenge to preventing terrorism... while additional resources would no doubt help, I think the best we can do is keep our eyes and ears open and react occordingly when something or someone seems a bit "off"
I understand that terrorist mentality mainly stems from brainwashing, so over the coming generations with cultural intervention, it's somewhat preventable, while pedophiles are full of complexities and can't be rehabilitated other than to condition them to suppress their instincts
you would think that the ease of access to child porn has had the exact opposite affect of suppressing the instincts of these individuals
again, no lack of articles out there on this and everything related...
http://www.macleans.ca/article.jsp?c..._104248_104248