Google is known for its code of conduct -- "Don't be evil" -- as much as its computer code. But as the company has become a dominant force online, Google's detractors have become more willing to see evil in its actions, even when they're seeing things that aren't there.

On Friday evening, the Web site of the Progress & Freedom Foundation was hit with a SQL injection attack that temporarily turned it into a malware distribution vector -- the injected script called out to a malicious third-party site that attempted to infect visitors' computers with malware.

Google has been automatically flagging malicious sites in its search results list for about two years and, upon detecting the hack at pff.org, its anti-malware code began adding a warning to search results listings for certain PFF pages.

But because the warning applied to Web pages that contained documents expressing opposition to net neutrality, a policy that Google supports, some saw politically motivated censorship.

Google "appears to be blocking a site which expresses opinions with which it does not agree ...," said Brett Glass, owner of wireless ISP Lariat.net, in an e-mail sent to David Farber's Interesting People mailing list. "When one does a search for the terms 'neutrality' and 'site:pff.org' ... many of the pages and documents on the site -- in particular, white papers expressing views with which Google disagrees -- are tagged with a warning that 'This site may harm your computer.'"

Glass didn't immediately respond to a request for comment. In previous e-mail messages and online posts, he has been critical of net neutrality.

As Google senior engineer Niels Provos and PFF visiting fellow Berin Michael Szoka explained in reply messages, there wasn't any political censorship. The PFF site was flagged as part of a technical process based on Google's anti-malware code. Sites that believe they have been unfairly or incorrectly labeled as having malware can appeal to StopBadware.org, which helps moderate potential disputes.

"Some of our critics are unfortunately quick to leap to political conclusions when a technical explanation is the answer," said Google spokesperson Adam Kovacevich.

However, the political and technical appear to be destined to collide as Google's influence grows. Indeed, in many ways politics and technology have fused.

Back in May, U.S. Sen. Joseph Liberman sent Google CEO Eric Schmidt an open letter seeking the removal of Islamic terrorist videos from YouTube. YouTube responded by saying it does remove videos that violate its terms of service, but that it would not remove "legal nonviolent or non-hate speech videos."

Outside the United States, in countries like China, for example, Google has been more willing to accommodate politically directed requests.

And because of that, Google will find it hard to avoid being seen as a suspect when speech gets silenced, even when it has acted in good faith.