The Picture Of Conformity

"As the memory of a world without surveillance disappears, society will just create a new normal, and then you'll see worse horrors," he says. "Our whole lives will become like the TSA checkpoint. You walk in there, you don't look mad, don't look upset, don't look distracted. Do nothing to stand out."

Recalling an old Japanese saying that "the pheasant who flies gets shot," Saffo says the mindset of the future may be: "Practice being invisible."

Public Reaction

Surveys reflect a mixed national mood on Big Brother. In a Washington Post-Kaiser Family Foundation-Harvard University poll conducted earlier this year respondents were split, 48 to 48 percent, on whether the government is doing enough to protect civil liberties as it fights terrorism.

More than a year earlier, in a Post-ABC News poll, 62 percent said the FBI should continue to have extra authority for wiretapping, obtaining records and surveillance in terror investigations.

In a different kind of opinion sample, Slobogin, the law professor, randomly selected 70 people from Florida jury pools and asked them to rank the level of intrusiveness of 25 law enforcement tactics, including several surveillance techniques.

In that 2006 study, the respondents ranked bedroom searches as the highest level of intrusiveness, followed by searches of e-mails, records from banks, pharmacies and credit cards, and the use of snoopware. The police pat-down -- that classic of perceived intrusiveness -- didn't rank as high.

In an earlier study, in 2002, 190 respondents also said bedroom searches were most intrusive, followed by body cavity searches at the border. But the monitoring of street surveillance cameras was a close third, deemed more intrusive than even a helicopter hovering over one's back yard.

People "don't expect to be stalked either by a person or by a camera -- at least they don't like it," says Slobogin. "They expect to get lost in the crowd, or at least not to be monitored continuously."

Scrutiny's Prison

And the "surveillance industrial complex," as some call it, is churning out ever more sophisticated methods for watching us, tracking us. Think: radio frequency identification chips. Think: iris recognition.

The surveillance camera? It is "no longer simply the fixed camera that looks like it's sitting inside a white shoe box pointing at the register of a 7-Eleven," says Marc Rotenberg, executive director of the Electronic Privacy Information Center.

"Now we have cameras that sit in black globes that zoom and pan at 360 degrees, have telescopic lenses and are beginning to interface with databases of facial images to try to do real-time matching of people in public places."

And cyberspace is littered with our spoor, our data trails, just lying there ready for the data miners to probe and find out what we buy, read, eat, how we spend, where we travel.