Introduction: Telephone traffic analysis

>They track and compare the frequency of calling patterns made by the targets.
>Now they know the "calling circle" of the targets.  They expand the tracking
>pattern and start looking for cross overs.

Tom Clancy in _Clear and Present Danger_ has a description of the CIA
doing something like this to the Columbia drug cartel.

f_griffith@titan.sfasu.edu says:
> Tom Clancy in _Clear and Present Danger_ has a description of the CIA
> doing something like this to the Columbia drug cartel.  

I was unaware that the cartels at the University had achieved that
much noteriety -- although we alumini have long known that they
controlled most of the international trade in tylenol...

Perry