This is the first single-authored, comprehensive treatment of intelligence support to the full range of homeland security practitioners with a focus on counterterrorism and cyber-security. In the post 9/11 era, federal homeland security professionals rely heavily on intelligence to perform their tasks in all mission areas—prevent, protect, mitigate, respond, and recover. But this enterprise also includes hundreds of thousands of state and local government and private sector practitioners who are still exploring how intelligence can act as a force multiplier in helping them achieve their goals. Steiner provides a thorough and in-depth picture of why intelligence is so crucial to homeland security missions, who provides intelligence support to which homeland security customer, and how intelligence products differ depending on the customer’s specific needs and duties.