Experts tell a UN panel leaders have refused to adopt measures remedying food shortages.
A US-based defector testifies about abuses she and her family endured.
The UN meanwhile presses on with an investigation of human rights abuses in the reclusive state.
But talks have broken down over financing issues.
Kim Jong Un's regime is less stable than his father's was, a North Korea expert says.
Traffic on the Hyesan-Changbai bridge on the Yalu River resumes after more than four months.
They all deal with banks in China, says a weapons expert.
Ninety percent of their harvest was taken last year by the military.