CNN19980522.0130.0281 NEWS CAPTION The FBI is investigating acid attacks on five miami-area clinics where abortions are performed. Three people sustained minor injuries. The fire department identifies the substance in four cases as butyric acid. Its fumes are not life threatening, but can be nauseating. The attacks were staged the day after governor lawton Chiles vetoed a specialty license plate carrying the slogan "choose life." It was supported by anti-abortion activists.