China has published a "guideline to Chinese law for foreigners coming to, leaving or staying in China during the Olympics," which states that, "anyone with listed diseases such as yellow fever, cholera, VD, leprosy, infectious pulmonary tuberculosis or AIDS will be prohibited" from entering the country during the games.

According to tweets from Marc van der Chijs, CEO of Spill Group Asia and Cofounder of Todou.com, China has issued orders that all entertainment web sites and regular television programming be shut down completely for the next 3 days. Only web sites covering the recent tragic 7.8 magnitude earthquake and television stations broadcasting CCTV earthquake programming will be allowed to remain live.

One of the first people to sound the alarm on China's upgraded police state was a British researcher named Greg Walton. In 2000, Walton was commissioned by the respected human-rights organization Rights & Democracy to investigate the ways in which Chinese security forces were harnessing the tools of the Information Age to curtail free speech and monitor political activists. The paper he produced was called "China's Golden Shield: Corporations and the Development of Surveillance Technology in the People's Republic of China." It exposed how big-name tech companies like Nortel and Cisco were helping the Chinese government to construct "a gigantic online database with an all-encompassing surveillance network — incorporating speech and face recognition, closed-circuit television, smart cards, credit records and Internet surveillance technologies."

When the paper was complete, Walton met with the institute's staff to strategize about how to release his explosive findings. "We thought this information was going to shock the world," he recalls. In the midst of their discussions, a colleague barged in and announced that a plane had hit the Twin Towers. The meeting continued, but they knew the context of their work had changed forever.

Walton's paper did have an impact, but not the one he had hoped. The revelation that China was constructing a gigantic digital database capable of watching its citizens on the streets and online, listening to their phone calls and tracking their consumer purchases sparked neither shock nor outrage. Instead, Walton says, the paper was "mined for ideas" by the U.S. government, as well as by private companies hoping to grab a piece of the suddenly booming market in spy tools. For Walton, the most chilling moment came when the Defense Department tried to launch a system called Total Information Awareness to build what it called a "virtual, centralized grand database" that would create constantly updated electronic dossiers on every citizen, drawing on banking, credit-card, library and phone records, as well as footage from surveillance cameras. "It was clearly similar to what we were condemning China for," Walton says. Among those aggressively vying to be part of this new security boom was Joseph Atick, now an executive at L-1. The name he chose for his plan to integrate facial-recognition software into a vast security network was uncomfortably close to the surveillance system being constructed in China: "Operation Noble Shield."

Empowered by the Patriot Act, many of the big dreams hatched by men like Atick have already been put into practice at home. New York, Chicago and Washington, D.C., are all experimenting with linking surveillance cameras into a single citywide network. Police use of surveillance cameras at peaceful demonstrations is now routine, and the images collected can be mined for "face prints," then cross-checked with ever-expanding photo databases. Although Total Information Awareness was scrapped after the plans became public, large pieces of the project continue, with private data-mining companies collecting unprecedented amounts of information about everything from Web browsing to car rentals, and selling it to the government.

Such efforts have provided China's rulers with something even more valuable than surveillance technology from Western democracies: the ability to claim that they are just like us. Liu Zhengrong, a senior official dealing with China's Internet policy, has defended Golden Shield and other repressive measures by invoking the Patriot Act and the FBI's massive e-mail-mining operations. "It is clear that any country's legal authorities closely monitor the spread of illegal information," he said. "We have noted that the U.S. is doing a good job on this front." Lin Jiang Huai, the head of China Information Security Technology, credits America for giving him the idea to sell biometric IDs and other surveillance tools to the Chinese police. "Bush helped me get my vision," he has said. Similarly, when challenged on the fact that dome cameras are appearing three to a block in Shenzhen and Guangzhou, Chinese companies respond that their model is not the East German Stasi but modern-day London.

Human-rights activists are quick to point out that while the tools are the same, the political contexts are radically different. China has a government that uses its high-tech web to imprison and torture peaceful protesters, Tibetan monks and independent-minded journalists. Yet even here, the lines are getting awfully blurry. The U.S. currently has more people behind bars than China, despite a population less than a quarter of its size. And Sharon Hom, executive director of the advocacy group Human Rights in China, says that when she talks about China's horrific human-rights record at international gatherings, "There are two words that I hear in response again and again: Guantánamo Bay."

The Fourth Amendment prohibition against illegal search and seizure made it into the U.S. Constitution precisely because its drafters understood that the power to snoop is addictive. Even if we happen to trust in the good intentions of the snoopers, the nature of any government can change rapidly — which is why the Constitution places limits on the tools available to any regime. But the drafters could never have imagined the commercial pressures at play today. The global homeland-security business is now worth an estimated $200 billion — more than Hollywood and the music industry combined. Any sector of that size inevitably takes on its own momentum. New markets must be found — which, in the Big Brother business, means an endless procession of new enemies and new emergencies: crime, immigration, terrorism.

In Shenzhen one night, I have dinner with a U.S. business consultant named Stephen Herrington. Before he started lecturing at Chinese business schools, teaching students concepts like brand management, Herrington was a military-intelligence officer, ascending to the rank of lieutenant colonel. What he is seeing in the Pearl River Delta, he tells me, is scaring the hell out of him — and not for what it means to China.

"I can guarantee you that there are people in the Bush administration who are studying the use of surveillance technologies being developed here and have at least skeletal plans to implement them at home," he says. "We can already see it in New York with CCTV cameras. Once you have the cameras in place, you have the infrastructure for a powerful tracking system. I'm worried about what this will mean if the U.S. government goes totalitarian and starts employing these technologies more than they are already. I'm worried about the threat this poses to American democracy."

Herrington pauses. "George W. Bush," he adds, "would do what they are doing here in a heartbeat if he could."

China-bashing never fails to soothe the Western conscience — here is a large and powerful country that, when it comes to human rights and democracy, is so much worse than Bush's America. But during my time in Shenzhen, China's youngest and most modern city, I often have the feeling that I am witnessing not some rogue police state but a global middle ground, the place where more and more countries are converging. China is becoming more like us in very visible ways (Starbucks, Hooters, cellphones that are cooler than ours), and we are becoming more like China in less visible ones (torture, warrantless wiretapping, indefinite detention, though not nearly on the Chinese scale).

What is most disconcerting about China's surveillance state is how familiar it all feels. When I check into the Sheraton in Shenzhen, for instance, it looks like any other high-end hotel chain — only the lobby is a little more modern and the cheerful clerk doesn't just check my passport but takes a scan of it.

"Are you making a copy?" I ask.

"No, no," he responds helpfully. "We're just sending a copy to the police."

Up in my room, the Website that pops up on my laptop looks like every other Net portal at a hotel -- only it won't let me access human-rights and labor Websites that I know are working fine. The TV gets CNN International -- only with strange edits and obviously censored blackouts. My cellphone picks up a strong signal for the China Mobile network. A few months earlier, in Davos, Switzerland, the CEO of China Mobile bragged to a crowd of communications executives that "we not only know who you are, we also know where you are." Asked about customer privacy, he replied that his company only gives "this kind of data to government authorities" -- pretty much the same answer I got from the clerk at the front desk.

At least one torchbearer decided to show her support for Tibetan independence during her moment in the spotlight. After being passed the Olympic flame, Majora Carter pulled out a small Tibetan flag that she had hidden in her shirt sleeve.

"The Chinese security and cops were on me like white on rice, it was no joke," said Carter, 41, who runs a nonprofit organization in New York. "They pulled me out of the race, and then San Francisco police officers pushed me back into the crowd on the side of the street."

The Olympic torch was rerouted away from thousands of demonstrators and spectators who crowded the city's waterfront Wednesday to witness the flame's symbolic journey to the Beijing Games.

As the heavily-guarded torchbearers made their way through the city's streets on a chaotic journey, there was scuffling between police and protesters, but order was restored quickly.

The planned closing ceremony at the San Francisco Bay waterfront was canceled and another one was planned at an undisclosed location. Massive crowds had gathered at the waterfront to support and protest the flame.

If the entire point is to display the flag as it goes around the world and have ceremonies for people to attend and then you change where all of these things will take place and not tell people, then you might as well not bother.

Shouting "Shame on China!" and waving Tibetan flags, pro-Tibetan demonstrators and others protesting Chinese human rights abuses turned the running of the Olympic torch through the streets here on Sunday into a tumult of scuffles. The police said that one man broke through a tight security cordon and made a failed grab for the torch, and that 35 people were arrested.

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One protester who broke through the police cordon, David Allen, said his anger flared at the sight of British sports stars being guarded in the streets of London by Chinese security men.

"What really got my goat was our sporting heroes being surrounded by the Chinese security heavies guarding the torch," he said. "It makes us complicit in the regime's repression. You have to ask: Where were these security men last week? Beating up people in the villages of China, no doubt."

One of the protesters who sparred verbally with pro-China groups in Trafalgar Square was David Phillips, a 25-year-old American from Austin, Tex., who said he had worked for six months at the American Embassy in Beijing.

Now working at a travel agency in London, Mr. Phillips said he had witnessed human rights abuses in China. "There are serious human rights violations going on, and you can't ignore that," he said. "And this is an appropriate place for us to voice our feelings."

Seven Tibet independence activists were detained this afternoon after three of them scaled the Golden Gate Bridge and unfurled a large protest banner reading "One World, One Dream, Free Tibet 08." The three climbers remained on the bridge for about 2 hours before coming down voluntarily. Upon their descent they were met and arrested by officers of the California Highway Patrol. The daring action comes two days before China's torch relay is expected to be greeted by thousands of Tibet protesters from across North America when it arrives in San Francisco.

Local mirror of video of protestors on the Golden Gate Bridge

In reality, what the Olympic-era visitors will be discovering is not the absence of China's electronic control but its new refinement--and a special Potemkin-style unfettered access that will be set up just for them, and just for the length of their stay. According to engineers I have spoken with at two tech organizations in China, the government bodies in charge of censoring the Internet have told them to get ready to unblock access from a list of specific Internet Protocol (IP) addresses--certain Internet cafés, access jacks in hotel rooms and conference centers where foreigners are expected to work or stay during the Olympic Games. (I am not giving names or identifying details of any Chinese citizens with whom I have discussed this topic, because they risk financial or criminal punishment for criticizing the system or even disclosing how it works. Also, I have not gone to Chinese government agencies for their side of the story, because the very existence of Internet controls is almost never discussed in public here, apart from vague statements about the importance of keeping online information "wholesome.")

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Disappointingly, "Great Firewall" is not really the right term for the Chinese government's overall control strategy. China has indeed erected a firewall--a barrier to keep its Internet users from dealing easily with the outside world--but that is only one part of a larger, complex structure of monitoring and censorship. The official name for the entire approach, which is ostensibly a way to keep hackers and other rogue elements from harming Chinese Internet users, is the "Golden Shield Project." Since that term is too creepy to bear repeating, I'll use "the control system" for the overall strategy, which includes the "Great Firewall of China," or GFW, as the means of screening contact with other countries.

British Olympic chiefs are to force athletes to sign a contract promising not to speak out about China's appalling human rights record -- or face being banned from travelling to Beijing.

The move -- which raises the spectre of the order given to the England football team to give a Nazi salute in Berlin in 1938 -- immediately provoked a storm of protest.

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From the moment they sign up, the competitors ... will be effectively gagged from commenting on China's politics, human rights abuses or illegal occupation of Tibet.

California Rep. Tom Lantos (D), a Holocaust survivor known for his dogged commitment to human rights issues, died early this morning at Bethesda Naval Medical Center after a bout with esophageal cancer. He was 80 and had served in the House since 1981.

This was the same Tom Lantos who really railed against Yahoo's CEO and counsel regarding the imprisoned Chinese dissidents.