(3rd LD) Gates says diplomatic engagement with N. Korea 'possible' By Kim Deok-hyun SEOUL, Jan. 14 (Yonhap) -- U.S. Defense Secretary Robert Gates said Friday diplomatic engagement with North Korea is "possible," but Pyongyang must first stop its "dangerous provocations and take concrete steps" to meet its international obligations. Gates made the remarks as he started talks in Seoul with South Korean Defense Minister Kim Kwan-jin to discuss concerns over the increasingly belligerent North and ways to further strengthen their deterrence against the communist state. "With regard to next steps on North Korea, diplomatic engagement is possible, starting with direct...