Writer Natalie Robins. Her new book, "Alien Ink: The F.B.I.'s War on Freedom of Expression," (published by William Morrow & Co.) is about the secret files the FBI has kept on American writers like Ernest Hemingway, Norman Mailer, E.L. Doctorow, and Grace Paley. The author obtained access to the files going back to writers like Jack London and Lincoln Steffens. The files are still being kept and many writers are unaware that they exist.