The Internet's phenomenal growth and elasticity have exceeded all expectations. At the same time, we have become captive to the limitations and vulnerabilities of the current generation of networking technologies. This book provides an overview of the federal governments vision for advanced networking and digital data and examines the research and development currently underway to create the next generation of networking technologies to address these threats for the future.

Part of the "What Do I Do Now?" series, Concussion uses a case-based approach to cover common and important topics in the examination, investigation, and management of acute and subacute concussion. Each chapter provides a discussion of the diagnosis, key points to remember, and selected references for further reading. The book addresses a wide range of topics that run the spectrum from acute concussion to the possibility of long-term sequelae of concussion, and is suited for physicians and sports medicine clinicians. Concussion is an engaging collection of thought-provoking cases which clinicians can utilize when they encounter difficult patients. The volume is also a self-assessment tool that tests the reader's ability to answer the question, "What do I do now?"