“Google is rebuffing the Bush administration’s demand for a peek at what millions of people have been looking up on the internet’s leading search engine — a request that underscores the potential for online databases to become tools for government surveillance… The government wants a list of all requests entered into Google’s search engine during an unspecified single week — a breakdown that could conceivably span tens of millions of queries… Yahoo, which runs the internet’s second-most used search engine, confirmed Thursday that it had complied with a similar government subpoena.”