Are all these warning signs? Yes. Are these inherently restrictions on civil liberty? No. With the exception of the exectuions at Ruby Ridge and Waco, these are simply the latest generation of crime-fighting tools, being used by the same league that has used such tools for centuries. Even the executions aren't completely novel; I remember Melvin Purvis executing John Dillinger in a hail of bullets on a Chicago street. And if Pinkerton had had GPS surveillance, the James Bros. probably wouldn't have robbed so many trains.
My whole point was that the mere existence of a "Homeland Security" department is ominous, but not necessarily a priori evidence that the govt. is out to "get us."
Maybe you've got YOUR eyes open wide enough to see things that aren't even there.
I believe that the things I have listed above are restrictions on our civil liberty--our right to privacy. Although this is not in the Constitution, the Supreme Court has made this into a legal precedent. You give the government an inch in regards to the things listed above and they will take a mile.