Google chairman Eric Schmidt announced a number of changes to the companys perpetual efforts to combat child pornography on on its services in an op-ed published in the Daily Mail on Sunday. Schmidt said that the company now has at least 13,000 queries and search terms which automatically trigger warnings from Google and certain charities alerting users that the content may be illegal. Schmidt also outlined how technology from their otherwise-competitor Microsoft is helping them apply unique identifiers to illegal images, and how YouTube is developing a similar system for video content: And Microsoft deserves a lot of credit for developing and sharing its picture detection technology.