In gentrified city neighborhoods across America, including Baltimore, many middle-class parents face a crucial question: Should we send our kids to a public school, a private school or a charter school -- or should we just move to the suburbs? Where can children get a good education in a racially and economically diverse setting, and how important is that? Education policy expert Michael J. Petrilli faced that question and has written a book about what he calls "The Diverse Schools Dilemma." Petrilli, a former education official under George W.