The claims of an Italian journalist who says U.S. troops shot her for no reason after she was released by terrorist kidnappers on Friday keep getting wilder and wilder. Now Giuliana Sgrena, who writes for the anti-American newspaper Il Manifesto, insists that U.S. forces used a tank to gun her and her entourage down. "A tank started to shoot at us without any sign or any light," Sgrena maintained to reporters on Monday. "It was not a checkpoint, so I can't explain it." She also hinted that U.S. forces deliberately targeted her, saying that they had been told she and...