Carnivore is reported to monitor email and other potentially dangerous communications, searching for watch-words like “bomb” or “Muslim” at an incredible rate, reporting potentially dangerous e-mails and people for further review, classification, rating, etc.
Smarter, presumably better successors to Carnivore now exist but they are all usually refered to as nothing more than Carnivore 2 or 3. While Carnivore was developed by the US, Carnivore-like systems exist throughout the world.
It was recently announced the Carnivore system is retired.
TakeDown.NET -> “Carnivore”