Google gives free software and sells low-priced Chromebook computers to thousands of American schools. In return, it collects alarming amounts of data on students without asking permission from their parents. Google currently collects information on student browsing histories and mines other data. Google says it doesn’t use the information it collects to push tailored ads to children, but the third-party companies that utilize Google’s extensive ad networks may not be as scrupulous ad networks. Google promises to change the Chrome-sync setting so it’s off by default, but it didn’t say when it would make that change.”]