North Korean state media published on Friday images of leader Kim Jong Un inspecting a “uranium enrichment base,” reporting his call for more centrifuges to “exponentially increase” the country’s ability to produce weapons-grade nuclear materials. The official Korean Central News Agency reported on Kim’s visit to the Nuclear Weapons Institute and the production base of weapons-grade nuclear materials, the first time state media has detailed an in-person inspection of a uranium enrichment facility by the nation’s leader. KCNA did not disclose the location of the site nor when Kim was there. In …