LITTLE ROCK, Ark. - Former Arkansas Gov. Sid McMath, who had become a powerful prosecutor and the state's leader by the age of 40, died at his home in Little Rock. He was 91. McMath had been examined by doctors last week for an irregular heartbeat. He died late Saturday, his son Phillip McMath said. After serving in the military during World War II, McMath began a career in public service, becoming a prosecutor in Hot Springs and winning election to his first of two terms as governor in 1948. "He was a young, progressive governor who had cleaned...