# 27. Rhetorical manipulation ## 27.5. Methodology/Refinements/Sub-species ### 27.5.4. Content Manipulation #### 27.5.4.10. Suppressed Evidence This is the deliberate failure to present relevant and important information in the presentation of an argument. This type of manipulation was used by Tony Blair to convince the British parliament to allow the invasion of Iraq when he asserted that "Iraq possesses Chemical and Biological Weapons and is seeking to produce Nuclear weapons", but Blair suppressed the negative military intelligence that Saddam's stockpiles were ancient and unusable. ***Parent:** [[Content Manipulation]]*