Here's another dailykos thread that focus on the issue of Bush's administration spying on US citizens:
The Emerging Story Behind the Wiretaps by remove office

Check out this comment from that thread:

"How many are personally affected? (none / 0)

If it turns out that what we're really talking about is a massive data mining program--like Carnivore or Echelon, but bigger, more state-of-the-art and more invasive--the list of targets could include most Americans.

Think about it. How many Americans have visited made overseas calls or engaged in electronic communications with other countries? At first, folks might assume this covers only Arabs e-mailing Riyadh. In fact, it might include senior couples booking anniversary trips to England...right-wing bloggers checking up on Al Jezeera...bank customers transferred to call centers in Bangalore...who knows?

The panic suggests the net was cast very broadly indeed. If it weren't, they'd be rushing to leak the identities of the targets, whether the revelations compromised security or not.

by Smallbottle on Tue Dec 20, 2005"

-snip-

Well, if the net is that broad, since Mudcat is a [largely progressive] international forum in which political issues are discussed, I've no doubt that we're probably being spied on as well.