In this Taking Cover update, a U.S. senator wants answers from the Marines about what went wrong - and we meet an Army soldier still serving on active duty who's been denied the truth about his war wounds. To listen to this series sponsor-free and support NPR, sign up for Embedded+ in Apple...

Tom and Graham meet Shihab's brother in Baghdad — but he's wary. They also visit Fallujah, to find the schoolhouse and talk with people who were on the other side of the occupation. Then, finally... back to Camp Pendleton.

The team turns to Pat Tillman's family for help. Duncan Hunter the elder, and the younger, respond to NPR's questions... kind of. A breakthrough in the search for the interpreter has Tom and Graham planning a trip back to where it all began.