Tony Blair has again denied that intelligence documents on Iraq's weapons programmes were changed on the orders of Downing Street to strengthen the case for war against Saddam Hussein. Announcing that Parliament's all-party Intelligence and Security Committee would be conducting an inquiry into the row, the prime minister said the allegations were "completely and totally untrue". Conservative leader Iain Duncan Smith said the whole credibility of the government was now at stake in the row. But the prime minister rejected Tory and Liberal Democrat demands for an independent judicial inquiry.