Every man is a borrower and a mimic, life is theatrical and literature a quotation.
- Ralph Waldo Emerson
With the rise of Web sites built around material submitted by users, screeners have never been in greater demand. Some Internet firms have tried to get by with software that scans photos for, say, a large area of flesh tones, but nothing is a substitute for a discerning human eye.
Concern for Those Who Screen the Web for Barbarity - NYTimes.com