WORLD VIEWS: New 'Downing Street Memo' says Bush, Blair agreed on 'regime change' in 2002; Iraq seen to 'slide into civil war'; and more.: "The British Cabinet Office briefing paper also stated that 'U.S. views of international law vary from that of the U.K. and the international community. Regime change per se is not a proper basis for military action under international law.' It further stated that the British government 'would regard the use of force against Iraq, or any other state, as lawful if exercised in the right of individual or collective self-defense, if carried out to avert an overwhelming humanitarian catastrophe or if authorized by the U.N. Security Council.' As it turned out, the U.S.-led attack on Iraq met none of those criteria. "