North Korean leader Kim Jong Un pledged Monday to prepare for a summit with South Korea, expressing willingness to ease military tensions in talks with special envoys from Seoul, the North's official media said Tuesday.But it is uncertain whether security concerns will wane in the Asia-Pacific region as Pyongyang has still been eager to pursue development of a nuclear-tipped ballistic missile that could strike mainland United States.Kim "made an exchange of in-depth views on the issues for easing the acute military tensions on the Korean Peninsula and activating the versatile dialogue, cont…READ FULL ARTICLE