SEOUL, Sept. 15 (UPI) -- North Korea said Monday that its status as a nuclear weapons state is "permanently specified" by law and "irreversible" in a statement condemning the United States' latest call for denuclearization. The statement came in response to remarks by interim Charge d'Affaires Howard Solomon of the U.S. Mission to International Organizations in Vienna at a meeting at the International Atomic Energy Agency last week. On Tuesday, Solomon expressed concern over the North's "