What are the different departments in the CIA?

What are the different departments in the CIA?

Ronald Kessler (Author of "The Terrorist Watch: Inside The Desperate Race To Stop The Next Attack") gives expert video advice on: What is the 'CIA'?; What does the CIA do?; Where is the CIA located? and more...

The CIA has the National Clandestine Service, which is the spy service, or the human intelligence. They have the Directorate of Intelligence, which is the analytical side. And then the Directorate of Science and Technology, which has to do, of course, with the technical means for gathering information; not only spy satellite information, but bugs; penetrating embassies, for example, to uncover conversations that are taking place i.e. communicating by computer secretly. Bugging the computers of terrorists would be another thing that that directorate would do. Very, very sophisticated stuff.