Which 1992 western has the line "I even thought I was dead 'til I found out it was just that I was in Nebraska"?

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? A 1992 Paris retrospective of which short artist's life sold replicas of his cane with a hidden vial for absinthe? A 1993 anthology of Asian American fiction is titled "___ Is Dead", naming which fictional detective? A 1993 Pulitzer cited John F. Burns's courageous coverage of the destruction of which Bosnian capital? A 1993 car bomb in Florence, Italy, damaged priceless works of art at which gallery? A 1993 film about chess prodigy Josh Waitzkin is titled "Searching for" whom?