North Korea reacted bitterly to yesterday's UN resolution condemning its December satellite launch, pledging to strengthen both military and nuclear capabilities.In a swift rejection of the U.N. warnings,  North Korea today said that it will take “physical counteraction” to bolster its “nuclear deterrence both qualitatively and quantitatively."The defiant statement from North Korea's Foreign Ministry came just hours after the United Nations Security Council unanimously adopted a resolution condemning rocket launch as a violation of an existing ban against nuclear and missile activity.UN Security Council Resolution 2087 imposes sanctions on North Korea’s space agency, targets the illicit