Tessa is the wife of a minor British diplomat in Nairobi, and an active campaigner for human rights...

BUSINESSWEEK ONLINE : DECEMBER 25, 2000 ISSUE BOOKS Le Carre Takes on a New Evil Empire THE CONSTANT GARDENER By John Le Carre Scribner -- 492pp -- $28 For this reviewer's money, John Le Carre's masterpiece, the novel that towers above his other 17, is now a decade-and-a-half behind him. When he published A Perfect Spy in 1986, the English master of cold war espionage gave us as fine a balance ...