The Impact Of Systemic Functional Linguistics And Critical Discourse Analysis On The Analysis Of Political Speech. Case Study: Barack Obama’s Speech On Osama Bin Laden Death

Résumé: This study is corpus-based which analyses a set of texts selected from the speech made by the previous United States president BARACK OBAMA on OSAMA BIN LADEN death, under critical linguistics theories using critical discourse analysis methodological framwork. In the light of Halliday's Systemic Functional Linguistics and Fairclough’s Critical Discourse Analysis theoritical frameworks, the main objective of this study is to describe the informative and persuasive strategies behind the linguistic choices and their intended ideologies in Barack Obama's speech about Bin Laden death. The use of Systemic Functional Linguistics provides us a systemic and functional model to describe the rhetorical strategies, social power and the control of public discourse. Indeed, the elements of transitivity, modality,and textual aspects allow us to discover how Obama relate the eradication of terrorism and the role he makes and the role that he adresses to each of the audiences. Fairclough’s Critical Discourse Analysis framework based on a Hallidayan perspective is used to explore the thetorical strategies: logic, emotions and cultural values which are bound up with the overall political purposes and to determine how mind control (Van Dijk, 2001) is linguistically exerted in Obama’s linguistic choices

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