This chapter covers the role of government in supply chain security. After discussing the basic items to be included in a security plan, current government programs are outlined in detail and appraised from the perspective of security enhancement. Emphasis is placed on international trade since this is the area which was most affected by the federal government's reaction to 9/11. Building on the discussion of natural threats to supply chains, disaster relief programs at the federal, state, and local levels are also examined. Finally, an attempt is made to answer the question whether or not the programs work in the ways intended.