The White House on Friday vowed to continue tough sanctions against North Korea after Pyongyang announced it had reached the final stage of enriching uranium. “We continue to be committed to ensuring that North Korea upholds its international obligations, and we continue to strongly implement the sanctions that were approved” by the U.N. Security Council, spokesman Robert Gibbs said. “Our goal continues to be, and will continue to be, the denuclearization” of the Korean Peninsula, Gibbs told reporters. Earlier on Friday, North Korea told the United Nations it was building more plutonium-based nuclear weapons and was near completion of an experimental uranium-enrichment effort.
