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While many school districts require visitors to sign in and wear a badge while in a school , some schools are choosing to issue photo identification badges to all staff as well . Their findings are interesting and valuable , but the topics and questions are chosen to promote the interests of the organizations who pay for them or - - - in the case of media polls - - - to interest their readers and viewers - - or to sell newspapers and make TV sound bites - - - almost never , to find out what the American people want for policy and legislation when presented with a wide range of options , pro and con arguments , etc. These examples are chosen to illustrate some of the very much wider range of approaches that were identified as part of the ARKive-ERA research work on annotation . And anyone hoping to be among the 50 or 60 artists whose films are chosen to run during the festival will have to realize the visual limitations of a 2-inch screen .