This workshop will explore several intelligence related capabilities and challenges related to their roles in countering terrorism. Intelligence has played a critical role in addressing all major threats to US national security for the past several decades. However, since 9/11 intelligence collection, analysis and dissemination have increased in importance to U.S. policy makers as they address America's new enemies; transnational, non-state actors with global reach and who are seeking access to weapons of mass destruction. The Intelligence in Counterterrorism Workshop describes intelligence capabilities and actions in countering terrorist operations and activities. With regards to intelligence the workshop discusses the "intelligence cycle," the full gamut of intelligence gathering disciplines will be discussed. However, signals, technical, and human intelligence gathering will be emphasized, as will the challenges of gathering intelligence in denied areas. The workshop relies heavily on case studies and guest lecturers to reflect the challenges and opportunities facing the intelligence community in America's counterterrorism efforts.