> To hear Carstens tell it, his career first took shape when, as an 11-year-old in Spokane, he read about the Cambodian genocide, learning how the world stood by as some 2 million perished in the Khmer Rouge’s killing fields. Raised in a Christian home where the Bible was a staple, he was determined to make a difference in the lives of the less fortunate. In time, he came to regard the US Army as “the most successful human rights organization in history when it comes to liberating vulnerable people.”