Book excerpt: In FY 2007, the fed. government¿s real property portfolio comprised 446,000 buildings with an area of 3.3 billion square feet and a replacement value of $772.8 billion. Contents of this report: (1) Fed. Facility Security Levels; (2) Interagency Security Committee; (3) Exec. Branch Facility Security: Fed. Protective Service (FPS): Historical Overview and Current FPS Authority; FPS¿s Use of Contract Security Guards; (4) Fed. Court Facility Security; (5) Supreme Court; (6) Coordination of Fed. Building Security; (7) Fed. Building Security Issues: FPS¿s Operations, Use and concerns of Contract Security Guards: FPS¿s Oper.; Coord. and Sharing of Fed. Building Security Info.; Facility Security Committees; Appropriations and Resources.