'N. Korea sat launch perfect for US nuke fear factory'

North Korea may not officially be on the agenda of the nuclear summit in Seoul, but it's something that's hard for leaders to avoid. Especially after Barack Obama's earlier warning to punish Pyongyang for what he described as 'bad behaviour' over its planned satellite launch. Irina Galushko has more.

Dr. Tim Beal, author and Asia specialist, talks to RT. He says there's nothing legally wrong in Pyongyang's actions.