The September 11 terrorist attacks have heightened concerns about the security of the nation's icons and parks, which millions of people visit every year. The National Park Service (NPS) within the Dept. of the Interior is responsible for securing nearly 400 park units that include icons and other parks. In 2004, an audit identified a set of key protection practices that include: allocating resources using risk management, leveraging technology, information sharing and coordination, performance measurement and testing, and strategic management of human capital. This report determined whether the NPS¿s security efforts for national icons and parks reflected key practices. Includes recommendations. Charts and tables.