WASHINGTON • Convincing North Korea to abandon nuclear weapons is a "lost cause", America's top intelligence official has said, causing concern in the State Department and ally South Korea over an issue of longstanding US policy.
The US has always maintained that it cannot accept North Korea as a nuclear state and, under President Barack Obama, has made any talks with the North conditional on Pyongyang first making some tangible commitment towards denuclearisation.
But in remarks to the Council on Foreign Relations think-tank, US Director of National Intelligence James Clapper suggested such a policy was based on wishful thinking.
"The notion of getting the North Koreans to denuclearise is probably a lost cause. They are not going to do that. That is their ticket to survival," he said on Tuesday.
"They are under siege, and they are very paranoid. So the notion of giving up their nuclear capability, whatever it is, is a non-starter with them."
TICKET TO SURVIVAL
The notion of getting the North Koreans to denuclearise is probably a lost cause. They are not going to do that. That is their ticket to survival.
US DIRECTOR OF NATIONAL INTELLIGENCE JAMES CLAPPER
His comments reflect an opinion widely held among North Korea experts but one only expressed in private by senior US administration officials who feel a policy change on North Korea is overdue.
While Mr Clapper may have been seeking to shore up arguments to support the imminent deployment of the US Thaad missile defence system in South Korea, his remarks add a high-profile voice to the growing debate over how the next US president should handle North Korea.
State Department spokesman John Kirby rebuffed Mr Clapper's position, stressing that "nothing has changed" with the Obama administration's policy of pushing the North - through a toughened sanctions regime - to give up its nuclear weapons.
"We want to continue to see a verifiable denuclearisation of the (Korean) peninsula," Mr Kirby said.
Critics of the policy say sanctions and non-engagement have done nothing to prevent the North's accelerated drive towards a credible nuclear deterrent that could directly threaten the US mainland.
South Korea, which has stood shoulder-to-shoulder with the US in its hard line on Pyongyang, also stressed there would be no change of policy.
"The determination of not only South Korea and the US but of the international community to end North Korea's nuclear programme is stronger than ever," a foreign ministry official said.
"We will work with the international community to impose stronger sanctions and pressure on the North so it will have no other choice but to denuclearise."
Although there is no official dialogue between Washington and Pyongyang, there are regular so-called Track 2 discussions involving former US diplomats and North Korean officials - most recently in Malaysia last weekend.
In July, the North cut off its only remaining official channel of diplomatic communications with the US in retaliation for American sanctions against its leader, Mr Kim Jong Un.
North Korea has been hit by five sets of UN sanctions since it first tested a nuclear device in 2006.