LONDON (AFP) - Melita Norwood, who passed on secrets to the Soviet Union believed to have helped them speed up development of the atomic bomb, died earlier this month at the age of 93, her daughter said. Anita Ferguson said her mother died on June 2 but declined to comment further. Described as the most important British female agent recruited by the KGB intelligence service, Norwood spied under the codename "Hola" and passed British nuclear secrets to the Soviet Union in the years after World War II. Norwood's activities were finally exposed when KGB archivist Vasili Mitrokhin defected to Britain...