If what Private Scott Thomas Beauchamp wrote in the New Republic isn't true, he's in trouble, and so is the magazine. If what Pvt. Beauchamp wrote is true, he's in bigger trouble. Pvt. Beauchamp is the Baghdad Diarist whose July 13 article, written under the clever pseudonym "Scott Thomas," drew much skepticism. Pvt. Beauchamp described how he made fun of a woman whose face had been severely scarred by an IED: "I love chicks that have been intimate with IEDS," Pvt. Beauchamp quotes himself as saying, loudly, to his buddies in the chow hall. "It really turns me on --...