(LEAD) U.S. has 'no interest' in peace treaty talks with N. Korea: Amb. Sung Kim
(ATTN: INCORPORATES US nuclear envoy-NK, US-NK-nuclear test) By Chang Jae-soon WASHINGTON, Oct. 20 (Yonhap) -- The United States has "no interest" in holding talks on a peace treaty with North Korea, Washington's chief nuclear enovy said Tuesday, str