SEOUL, South Korea (AP) — North Korea refused Tuesday to give up its nuclear weapons until after the U.S. alters its “hostile policy” toward the regime and proves it does not pose an atomic threat to the wartime rival. The cryptic statement from North Korea’s Foreign Ministry is the first to lay out North Korea’s nuclear stance since the last round of international talks on disarming the North in December. Analysts say the statement  also sends a strong signal that Pyongyang is keen to forge diplomatic relations with the next U.S. administration.