Eleven-year-old Hajer Sami says she does remember her father. She was only 4 when he was killed, but she struggles to recall vivid memories of him and their family when it was whole. Her family was torn apart when her father, a policeman, was gunned down seven years ago on the streets of Baghdad.

She struggles to comprehend why anyone would have wanted to kill her father or why some people detonate explosives in the middle of a crowd. "Why do these people kill other people? Do they get paid money to do it?" she asks. Why? It's a question likely asked by many at the Al Noor Children's Center in Baghdad's Sadr City, a Shiite enclave home to more than two million people.

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