Joan Didion died December 23 – she was 87. She wrote personal essays about California in the sixties and seventies, especially “Slouching Toward Bethlehem” and “The White Album,” and then about politics and history, especially her reports in “Salvador” and “Miami.” We spoke in October, 2003, at KPFK in Los Angeles, when her book about her family's California, Where I was From had just been published.