A 1991 book about which actor, JFK's brother-in-law, is subtitled "The Man Who Kept the Secrets"?

A 1990s Internet text retrieval protocol shared its name with which burrowing rodent? A 1990s pop group was called "4 Non" what? Which two-word UK act of 1991 required certain parents to make periodic maintenance payments? The Mystery Writers of America's award for best critical or biographical work is named for Poe and called what? A 1991 Annie Leibovitz cover showed which actress nude and pregnant? A 1991 photo of Gaspra by the Galileo probe was the first close-up of which type of minor planet? A 1991 railroad accident dumped 19,500 gallons of pesticide into which state's Sacramento River? A 1992 law introduced by Senator Alan Cranston aimed to reduce the use of paint containing too much of which element?