This book is quite interesting but very comprehensive and applies to general principles that should participate in the operation of these little known information services.Quelques give it the specialist touch "home". I dispute the Manichean aspect of the functioning of the internal service although for some these behaviors were applied. Not all people and limps officers were blackmailed or forced or "manipulated" to run confidently missions. One gets the impression that everyone is subject to the occult intelligence authorities (in which case how are chosen those who run them, who rule the country (ies) ..cela then join an elite theory which sets up global governance etc ...) That said there are countries that need to protect their economy, territory, institutions through means "limit" in legal terms and therefore use the services "secret" not to contradict their own laws .. .This left to read for the original presentation of this subject and the references ...
