North Korea’s foreign minister on Thursday called U.S. Secretary of State Mike Pompeo a “diehard toxin” and “poisonous” to diplomacy between the two countries. Denuclearization talks between the two sides have stalled for months since a failed second summit between President Trump and North Korean leader Kim Jong-un in Hanoi in February. The two leaders met again in June at the inter-Korean border, where they agreed to reopen negotiations, but that has not happened.