North Korea is accusing US and South Korea of attempting to assassinate Kim Jong Un with a "bio-chemical substance"

North Korea has just accused the United States and South Korea of attempting to assassinate leader Kim Jong Un with a "bio-chemical substance." In a report released today which offered no evidence, North Korean state news agency KCNA said a "hideous terrorist group" conspired with the CIA and South Korea's Intelligence Service (IS) to mount the attack. The report said the aim of the attack was