"The following links and documents provide general guidelines, tools, and other resources on the subject of target hardening. Target hardening has long been a common strategy for combating criminal activity. Consequently, there is a wealth of information on target hardening measures that can be applied to address the issue of terrorism. In addition, several new guidelines and reports have been issued that examine target hardening measures that are specific to terrorism."
Lessons Learned Information Sharing (LLIS)