Citing “well-informed Canberra sources close to U.S. thinking,” The Australian’s foreign editor Greg Sheridan said the U.S. has produced a blueprint to bomb Yongbyon if the plant went ahead with reprocessing spent nuclear fuel rods to make atom bombs.

Los Alamos National Laboratory, the birthplace of the atomic bomb, has restored the nation’s ability to make triggers for nuclear weapons for the first time in nearly 14 years.