TOKYO (Reuters) - Japan will not allow the squad of Chinese flame guards to intervene with the Beijing Olympic torch's progress when it arrives in a Japanese city this month, the national police head was quoted as saying on Friday. "We should not violate the principle that the Japanese police will firmly maintain security," Kyodo news agency quoted Shinya Izumi, head of the National Public Safety Commission, as saying. "We do not know what position the people who escorted the relay are in," Izumi was quoted as saying. "If they are for the consideration of security, it is our role."...