S. Korean defense minister resigns; North threatens additional attacks
http://www.cnn.com/2010/WORLD/asiapcf/11/25/koreas.crisis/index.html?eref=rss_topstories&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+rss/cnn_topstories+(RSS:+Top+Stories)
Earlier reports said counter-battery would not be effective given the NK artillery where in hardened bunkers.