The United States has requested numerous records of searches looking to see what is being requested by users on the search engine. Google, to it’s credit I think, is opposing that move vigorously in an effort to protect the privace of it’s users, and in the interest of protecting Google’s own marketing information. The reason the government wants the information is because it is challenging the rejection of The 1998 Child Online Protection Act that intended to require you to log in before you can see “objectionable material”.