A still image from video shows former British Prime Minister Tony Blair (BACK TO CAMERA) speaking at an inquiry into Britain’s role in the Iraq War, at the Queen Elizabeth II Conference Centre, in central London January 21, 2011. Blair appeared on Friday before the inquiry, headed by former civil servant John Chilcot, for a second public grilling to clarify earlier evidence detailing his reasons for joining the controversial invasion. REUTERS/Parbul TV via Reuters TV (BRITAIN – Tags: POLITICS CONFLICT) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS – RTXWVGK