In the last two decades, there has been a significant increase in body language awareness and its use for a myriad of purposes: to train Marines and Soldiers for combat, to assist the Department of Homeland Security in preparing police and security personnel for the field and to aid in business meetings as well as the medical field, to name just a few examples. This thesis focuses on four domains which aid in the reading and interpretation of non-verbal cues and then evaluates the entry-level training of four different government agencies that currently use and need body-language recognition for security purposes. Each of the government agencies evaluated invests enormous sums in technology for the purpose of protecting the citizens of the United States. However, threat recognition and threat awareness utilizing the skills of interpreting non-verbal behavior and micro-facial expressions may represent a more cost effective means for the training of first line personnel to recognize actual threats. The skill sets and information presented in this thesis represent a first step in opening the communications to develop such training in an effort to further protect and defend the public.