The metrics of war.

Bloomberg notes, “Four thousand U.S. service members have died in U.S. President George W. Bush’s ‘war on terror’ in Iraq and Afghanistan 5 1/2 years after American forces ousted the Taliban in December 2001.” AP adds, “All told, Congress has appropriated $610 billion in war-related money since the Sept. 11, 2001, terror assaults, roughly the same as the war in Vietnam. Iraq alone has cost $450 billion.” The wars cost approximately $12 billion a month, according to a new Congressional Research Service report.