North Korea's nuclear weapons stockpile could increase sharply within years: U.S. scientistUpdated: 2014-07-07 22:08:05 (KST)
A U.S. expert says Pyongyang could significantly boost its nuclear capacity if it completes work on a light water nuclear reactor that's currently under construction.
U.S. nuclear scientist Charles Ferguson, the president of the Federation of American Scientists says Pyongyang will be able to produce 30 to 40 kilograms of plutonium each year when the light water reactor at its Yongbyon nuclear complex goes into operation.
That is enough to make five to six nuclear bombs a year.
He adds that since North Korea already possesses at least 30 kilograms of plutonium it would behoove Washington to bring Pyongyang back to the negotiating table.