If George W. Bush launches a pre-emptive war on Iran, House Speaker Nancy Pelosi will bear full moral responsibility for that war. For it was Pelosi who quietly agreed to strip out of the $100 billion funding bill for Iraq a provision that would have required President Bush to seek congressional approval before launching any new war on Iran. Pelosi's capitulation came in the Appropriations Committee. What went down, and why? "Conservative Democrats as well as lawmakers concerned about the possible impact on Israel had argued for the change in strategy," wrote The Associated Press' David Espo and Matthew Lead....