The Homeland Security Act of 2002, which created the Dept. of Homeland Security (DHS), brought together 22 diverse org's. to help prevent terrorist attacks in the U.S., reduce the vulnerability of the U.S. to terrorist attacks, and minimize damage and assist in recovery from attacks that do occur. The act est'd. homeland security responsibilities for DHS, which incl. sharing info. among its own entities and with other Fed. agencies, state and local gov'ts., the private sector, and others. This report discusses DHS's info. sharing (IS) efforts, incl.: the significance of IS in fulfilling DHS's respon.; prior analyses and recommend. for improving the Fed. govt.'s IS efforts; and key mgmt. issues DHS should consider in developing and implementing effective IS processes and systems.