Homeland Security: Evolving Roles and Missions for United States Northern Command [Updated January 22, 2007] [open pdf - 70KB]
From the Summary: "In 2002, the Department of Defense (DOD) established United States Northern Command (NORTHCOM). Four years later, the organization continues to mature and adapt to evolving national homeland security policy. Current issue areas for Congress include DOD reorganization, formalizing interagency processes and an increasing reliance on Reserve Component forces. This report will be updated as events dictate."
CRS Report for Congress, RS21322