Nuclear News Roundup May 16, 2017 Kazakhstan has opened a new facility to provide security training to its nuclear facility personnel. The Nuclear Security Training Centre (NSTC) has been developed with the support of the US National Nuclear Security Administration (NNSA). World-nuclear-news.org The first vacuum vessel sector sub-assembly tool for the Iter fusion reactor has passed factory acceptance tests in South Korea. The tool is by far the largest custom-designed tool for the reactor, currently under construction at Cadarache in southern France. World-nuclear-news.org North Korea has "ample technical reason" to carry out yet another nuclear test as the regime seeks to develop a reliable intercontinental ballistic missile that can deliver nuclear weapons, a U.S. nuclear scientist said. English.yonhap.co,kr The collapse of a tunnel used to store radioactive waste at one of the most contaminated U.S. nuclear sites has raised concerns among watchdog groups and others who study the country’s nuclear facilities because many are aging and fraught with problems. Insurancejournal.com