Hugo and Nebula award-winner Terry Bisson is best known for his short stories, which range from the southern sweetness of "Bears Discover Fire" to the alienated aliens of "They're Made Out of Meat." He is also a 1960's New Left vet with a history of activism and an intact (if battered) radical ideology. The Left Behind novels (about the so-called "Rapture" in which all the born-agains ascend straight to heaven) are among the bestselling...