North Korea accuses US of blocking development, denounces sanctions imposed on poor countries North Korea accuses US of blocking development, denounces sanctions imposed on poor countries North Korea's UN Envoy Accused The United States Of Working To Block Economic Development And Denounced Sanctions Imposed On Poor Countries As A Bid To 'destroy Modern Civilization'. PTI | Updated on: 04 Oct 2017, 03:11:43 AM United Nations: North Korea's UN envoy accused the United States of working to block economic development and denounced sanctions imposed on poor countries as a bid to "destroy modern civilization". Ambassador Ja Song Nam said North Korea will withstand the blow of sanctions and continue "along the road of building the socialist power by dint of the spirit of self-reliance and self-development."