BAGHDAD, Iraq -- In the 20 weeks since the fall of Baghdad, two U.S. soldiers and two Iraqi women won each other's hearts.The American men and Iraqi women courted, fell in love and decided to marry, but they had to battle disapproving senior American officers and fears of retribution by militant Iraqis.When they finally held their double wedding ceremony Aug. 17, the nuptials were carried out with the secrecy and synchronization of a commando operation.The two brides -- one in a print dress, the other in slacks -- and a few family members came to a city street corner at...