The main purpose of this study is to clarify patterns of bias that news editors usedin Al-Ahram, Al-Wafd and Al-Masry Al-Youm to present and frame events of the 25 January revolution and the main forces of conflict in specific features and roles. The study also sought to reveal the impact of some variables such as newspaper ownership,editorial policy and the nature of the events themselves that build bias in news coverage, which affected the professional performance of these newspaper.The study depends on twotheoretical approaches (News Discourse Theory and Framing) a sample of 1315 News, News reports and News stories in three daily Journals. Period of the study extended from 25 January 2011 to 2013. The findings indicate that There is no absolute objectivity in news coverage, as well as the fact that bias is a feature of covering the events of "political violence" because of communication structure of these events that produce biased coverage.
Also findings indicate that News editors use information sources, language, statistics, and other patterns of bias to frame events of the January revolution and main actors in specific contexts, features and roles. It is also certain that the employment of various bias mechanisms during the process ofproducing these polarized and framed news coverage in specific contexts were consistent with editors orientation and rules of the editorial policy of their newspapers.
