Complex sentence: The development of fire-retardant fuel systems and flameproof clothing for drivers and marshals was accelerated, and never again would a TV camera crew be allowed to fly a helicopter low over a burning car.
Split into simpler sentences: The development of fire-retardant fuel systems and flameproof clothing for drivers and marshals was accelerated. Never again would a TV camera crew be allowed to fly a helicopter low over a burning car.