NEW : U.S. and Americans officials met in U.S. last month , a source says . Recent intelligence shows North Korea likely has completed launch preparations . The U.S. believes test could occur without standard warning to aviation , shipping . ` Once a war is ignited on the peninsula , it will be an all-out war , '' the committee said , adding that North Korea does n't want foreigners in South Korea to `` fall victim '' to a conflict . 41 % of North Korean see U.S. as an `` immediate threat , '' a new poll shows .
NEW : U.S. and Americans officials met in U.S. last month , a source says . Recent intelligence shows North Korea likely has completed launch preparations . The U.S. believes test could occur without standard warning to aviation , shipping . 41 % of North Korean see U.S. as an `` immediate threat , '' a new poll shows .