BRIGHTON, UNITED KINGDOM - SEPTEMBER 12:  British Prime Minister Tony Blair answers questions after his speech at the Brighton Centre to the Trade Union Congress conference on September 12, 2006 in Brighton, England. Mr Blair was subjected to heckling during his speech to the TUC which is to be his last as Prime Minister. Getty Images logo Getty Images 41 months ago

BRIGHTON, UNITED KINGDOM - SEPTEMBER 12: British Prime Minister Tony Blair answers questions after his speech at the Brighton Centre to the Trade Union Congress conference on September 12, 2006 in Brighton, England. Mr Blair was subjected to heckling during his speech to the TUC which is to be his last as Prime Minister.