Attacks on U.S. forces in Iraq are becoming more organized and more sophisticated, a senior Joint Staff official said today, even though the pace of attacks has lessened somewhat since former Iraqi President Saddam Hussein's sons Uday and Qusay were killed last week. Lt. Gen. Norton Schwartz, the Joint Staff's director of operations, told reporters today that Iraqi opposition forces are using more lethal weapons when attacking U.S. forces. "We have seen a transition from small arms attacks to rocket-propelled...