I found this NBC article from January 7 when Hagel was tapped for the job by Obama. It says:
Hagel would be the first former enlisted soldier to become the secretary of defense. His views of international conflict are heavily influenced by his own service in the Vietnam War; he ‘won’ two Purple Hearts for his service and still has pieces of shrapnel embedded in his chest.
I wonder if my husband’s grandfather would feel like he “won” his purple heart. He was killed in Pearl Harbor.