OverviewEarly July, and the corn in eastern Nebraska stands ten feet tall; after a near-decade of drought, it seems too good to be true, and everyone is watching the sky for trouble. For the Grebels, whose plots of organic crops trace a modest patchwork among the vast fields of soybeans and corn, trouble arrives from a different quarter in the form of Elsas voice on her estranged sons answering machine: "Your fathers dead. Youll probably want to come...