Hard News: The Scandals at the New York Times and Their Meaning for American Mediaby Seth Mnookin (Random House, 352 pages, $25.95) JAYSON BLAIR GREW UP IN FAIRFAX COUNTY, Virginia, in a much more upscale neighborhood than this Fairfax-based reviewer can afford. His father was a bigshot at the Smithsonian and his mother a local schoolteacher. The family was heavily involved in a local church. Jayson started a chapter of the Fellowship of Christian Athletes in high school, even though he was not himself a jock. In eighth grade, he changed the spelling of his name to Jayson to stand...