U.S. defense chief James Mattis says Washington's goal is to denuclearize North Korea

Seems like such a statement should be coming from Department of State not Department of Defense. But oh wait, Trump told Tillerson he was wasting his time with North Korea.

Yeah cause U.S. ability to prevent other nations since 1945 from establishing themselves as nuclear powers has worked out so well.

That should be really fun to do, they'll fight tooth and nail.