Obama＇s ＇ Strategic Patience＇ and the North Korean Nuclear Issue

How do we persuade Pyongyang to scrap its nuclear weapons program？ How do we stop it from behaving provocatively？ Obama has been struggling with these questions. In his first term, Obama adopted a policy of strategic patience. How will he deal with the country in his second term, especially after the D.P.R.K. launched its third nuclear test and heightened tensions in the Korean Peninsula remain？ What is Obama＇s motivation？