Two Washington consultants with backgrounds in the shadier halls of the US government examine the basic concepts and issues involved in the practice of intellig... » 

Two Washington consultants with backgrounds in the shadier halls of the US government examine the basic concepts and issues involved in the practice of intelligence. Though they draw most of their examples from US and British experiences, they intend their account to be broadly applicable. The 1991 original has been revised in 1993 and again here t «