North Korea is believed to have replaced its three top military officials, regarded as hardliners, with moderates ahead of a summit later this month with the United States, a South Korean news agency reported over the weekend, citing an intelligence source.A spokesman of South Korea's Unification Ministry said Monday that Seoul has not yet confirmed the replacements, which if true would be an extraordinary development.North Korea's official media revealed late last month that Kim Su Gil, who was chairman of the Pyongyang City Committee of the Workers' Party, has replaced Kim Jong Gak as dir…READ FULL ARTICLE