North Korea passed a law enshrining the right to use pre-emptive nuclear strikes to protect itself, a move leader Kim Jong Un said makes its nuclear status "irreversible" and bars any denuclearisation talks, state media reported on Friday.WATCH MORE: https://thestartv.com/c/newsSUBSCRIBE: https://cutt.ly/TheStarLIKE: https://fb.com/TheStarOnline