Demonstrators with hands covered in fake blood and a Tony Blair mask protest outside the Queen Elizabeth II conference centre in London

Demonstrators with hands covered in fake blood and a Tony Blair mask protest outside the Queen Elizabeth II conference centre in London November 24, 2009. An official inquiry into Britain’s involvement in the Iraq War began on Tuesday, promising a thorough investigation which could prove embarrassing for the government ahead of next year’s election. REUTERS/Luke MacGregor (BRITAIN CONFLICT POLITICS IMAGES OF THE DAY)