Chun Young-woo, presidential secretary for foreign affairs and national security, delivers a speech to the media at South Korea's presidential Blue House in Seoul, South Korea, Oct. 7, 2012. South Korea is now allowed to develop ballistic missiles with a range of up to 800 kilometers, more than double the current limit, under a revised pact with the United States to better respond to percieved missile threats from the Democratic People's Republic of Korea (DPRK), the presidential office here said Sunday. (Xinhua/Park Jin-hee)