North Korea has recently tested devices used to trigger atomic explosives 70 times, according to the country neighbor South Korea.And the country has confirmed that the North has reprocessed some of its 8,000 spent Nuclear Fuel Rods.Since April, North Korea had claimed that it had all but finished reprocessing the 8,000 rods, but until now both US and South Korean officials have doubted the claim.Expert say that if the rods were reprocessed they could yield enough plutoninum for several atomic bombs 'within months.'The South's Intelligence Agency said that the devices were tested at Yongduk-dong, some 25 miles northwest of Yongbyon,...