The nonpartisan Congressional Research Service estimates that the total price tag for U.S. military activities in Iraq and Afghanistan, as well as counterterrorism activities around the world, will significantly exceed the half-trillion-dollar mark over the next fiscal year. This projection, spelled out in a new 36-page report, is based in part on a little-noticed White House Office of Management and Budget estimate in July that projects $110 billion in fiscal year 2007 war funding, $8 billion less than the Defense...