The below documents are public domain reports that were produced by the Terrorism Research Center:

Project Pediatric Preparedness final report

Utilizing Terrorism Early Warning Groups to Meet the National Preparedness Goal

National TEW Resource Book

Terrorism, Global Security, and the Law

Unrestricted Warfare – The TRC was the first organization to draw attention to this document over a decade ago. It has had profound impact on the state of cyber conflict today.

Terrorism Reference CDROM 2002 – This archive of a Terrorism Reference CDROM from 2002 is a great snapshot in time of what the state of counterterrorism research and analysis was only one year after September 11, 2001.