Next time you're chatting to someone in a bar...

[jaguar]

Remember this.
here

The bill would allow Pentagon intelligence agents to work undercover and question American citizens and legal residents without having to reveal that they are government agents.

And before you think the chances of getting caught out by some guys with earpieces that seem eager to talk to you, think about this quote from the slashdot discussion of this.

How about one day you're hanging out at a bar, and you meet a girl who seems really friendly, you get along, and you start to go out. You happen to be a writer, and one day your typewriter breaks, and guess what? she happens to have a typewriter she can give you! Then you find out a year from now that the typewriter is bugged and records everything you write ...

This is what happened to Philip Agee, CIA defector, in Paris. A long and elaborate ruse involving gaining his trust and a series of 'accidental' occurrences seemingly unrelated. But that was done outside of the US, where warrants aren't necessary and it's basically just espionage.

Do you really want this kind of thing to be able to happen domestically? No constitution, no bill of rights, no need for warrants, no need for transparency--just all out domestic espionage operations.