Washington, D.C. Mayor Adrian Fenty seemed silent and secretive about acting in the self-interest of his own children. Asked at a press conference about where his kids were attending school this academic year, he answered, in essence, “None of your business.” Why this sensitivity? Good school, bad schoolOne of Fenty’s sons started school this year at Lafayette Elementary, a public—read government—school in D.C. But the neighborhood school to which kids at Fenty’s residential address would normally be assigned is West Elementary. Lafayette is in one of the best parts of the city. It gets a 10 out of 10 rating...