SEOUL, Oct. 8 (UPI) -- North Korean leader Kim Jong Un warned the United States and South Korea that any attack would be met with a nuclear response, state media reported Tuesday, as tensions remain high on the Peninsula and concerns swirl about a possible provocation ahead of the U.S. presidential election. Kim made the threat in a speech during his visit to Kim Jong Un University of National Defense on Monday, according to Korean Central News Agency. Advertisement "If the enemy attempts to