US top diplomat refers to NKorea as 'illegitimate regime'

Secretary of State John Kerry has described North Korea's government as "an illegal and illegitimate regime."
Kerry used the unusually tough language as he met Kuwait Foreign Minister Sabah Al Khalid Al Sabah today and credited the Gulf nation for its efforts in countering the North's proliferation activities.
Kerry said Kuwait has "recently taken steps to curb flights and to make sure that revenues from workers are not sustaining an illegal and illegitimate regime in North Korea."
The US routinely condemns North Korea's nuclear and missile tests as violations of UN Security Council resolutions and is also deeply critical of the North's human rights record.

It is less typical for US officials to question directly the legitimacy of the hereditary regime of leader Kim Jong Un.