Sanders backs Warren after Liz Cheney attacks ‘no first use’ nuclear policy. Theguardian.com

The International Atomic Energy Agency must be unyielding in reporting any failure by Iran to comply with a landmark nuclear agreement that is gradually unravelling, according to a leading contender to head the UN’s nuclear watchdog. Ft.com

Michael Kirby urges Australia to sign up to nuclear weapon ban treaty. Theguardian.com

The Trump administration was hoping to quietly resume nuclear-disarmament talks with North Koreans at a major Asian summit here this week. But Pyongyang’s officials were a no-show, once again snubbing U.S. envoys and casting fresh doubts about President Trump’s initiative to persuade Kim Jong Un to shed his ample nuclear arsenal. Latimes.com