The Defense Department can sustain the 135,000-strong force level now in Iraq or even add more troops if U.S. Central Command chief Army Gen. John Abizaid asked for them to combat insurgent forces, Defense Secretary Donald Rumsfeld said today. The Bush administration had planned to reduce the force level in Iraq to 115,000 but April has turned out to be a particularly violent month, forcing DOD to extend the deployment orders for 20,000 troops slated to return from Iraq starting...