LOS ANGELES (AP) - Col. Edward N. Hall, who as director of the Minuteman intercontinental ballistic missile program helped develop the country's solid-fuel rocket technology, putting the United States decades ahead of other superpowers, has died. He was 91. Hall died Sunday at Torrance Memorial Medical Center, said his daughter, Sheila Hall of Calabasas. The cause of death was not immediately known. Thanks to Hall's immense knowledge of rocket propellants, the Air Force created its first solid-fuel ICBM in the late 1950s. His work helped switch the country's missiles from liquid fuel to solid fuel, which made them smaller, easier...