Do they or don’t they? Amid Pentagon reports that it would be “inaccurate” to suggest that North Korea has proven its nuclear-missile ability—despite a classified report from the Defense Intelligence Agency on Thursday—U.S. Secretary of State John Kerry arrived in Seoul. In a news conference, Kerry reaffirmed the U.S.’s support of its allies and called North Korea’s ramped-up rhetoric “unacceptable.” He said that the U.S. would be willing to enter talks with Kim Jong-un only if he’s serious about denuclearization. Asked if war is imminent, a U.S. official in Seoul said “not at all.” An official said Washington’s greatest concern is Kim Jong-un’s “youth and inexperience” leading to a “miscalculation” of the situation.