Why, yes, this IS why we have a Patriot Act.

The Justice Department is trying to data-mine Google.

As a result, government lawyers said in court papers they are developing a defense of the 1998 law based on the argument that it is far more effective than software filters in protecting children from porn. To back that claim, the government has subpoenaed search engines to develop a factual record of how often Web users encounter online porn and how Web searches turn up material they say is “harmful to minors.”

“The government can’t even claim that it’s for national security,” Everett-Church said. “They’re just using it to get the search engines to do their research for them in a way that compromises the civil liberties of other people.”