I heard that about 75% of ISP's are Carnivore-free, but after September 11 that number dropped to about 50-60%.
Thats bad news for you ISP users... For those of you who dont know Carnivore is a so called 'diagnostic' tool that tracks all incoming and outgoing mail from your ISP....
A few years after the Carnivore program was started the FBI changed the name to DSC1000.
And whats worst of all is that that according to CNET News the FBI wants Carnivore-type powers for phone lines.

Carnivore Homepage

Check if your ISP uses Carnivore

FBI want Carnivore powers for phone lines

FBI takes the teeth out of Carnivores name