The need for in-flight event detection and monitoring systems is clear. To address this and other safety and security needs, IEM proposed the Reactive In-flight Multisensor Security System (RIMSS) an affordable system which would improve safety and security within an aircraft by: ?detecting abnormal events (including but not limited to unusual passenger/crew activities, losses of pressure, deviations from flight plan, movement or fire in cargo areas, etc.) ?automatically alerting the crew to these events ?recording the entire event Phase I demonstrated that this system was feasible, practical, and well positioned to assist in NASA's Protected Asset Flight System (PAFS). In Phase II, IEM will develop a full prototype of RIMSS featuring: ?an innovative and unique multisensor data fusion engine, IEM's Smart Sensor Situation Understanding System Architecture (S3USA) ?unique hardware (optics, DSP-based integrated processor, imaging and acoustic arrays) ?Proprietary and innovative software (object/event detection, identification, tracking, biometrics, etc.) ?aircraft certified automatic communication with ground stations when events detected ?compression for video over limited bandwidth ?other innovations as detailed. Boeing's Phantom Works is keenly interested in RIMSS' potential for aircraft safety monitoring, and will assist in the development and demonstration of RIMSS.