Journalist and former hostage Giuliana Sgrena says that the American military is lying about the shooting at a security checkpoint in Iraq that wounded her and killed an Italian intelligence officer. Days before the Pentagon is expected to release the results of its investigation into what happened at the checkpoint, Sgrena tells Correspondent Scott Pelley that shortly after her release by insurgents, American soldiers in Baghdad opened fire on her car without any warning. Pelley's interview with Sgrena will be broadcast on 60 Minutes Wednesday, April 13, at 8 p.m. ET/PT. Italian intelligence officer Nicola Calipari negotiated Sgrena's release from...