by North Korean Nuclear Weapons" to President Trump, recommends a checklist of actions, including the following declarations to North Korea. No use of WMDs, or it will result in a unified Korea under Seoul after the North's assured destruction. No export of nuclear equipment or fissile material; it will be intercepted, and the US will respond. No missile or missile test aimed at ROK (South Korea), Japan, or the US; it can then be shot down or pre-empted. On 30 July 2017, a Kodiak-sited THAAD interceptor shot down an MRBM which launched over the Pacific Ocean, the 15th successful test; the Missile Defense Agency (MDA) director emphasized the data collection from the intercept, which enhances the modelling and scenario simulation capabilities of the MDA. John Schilling estimates the current accuracy of the North's Hwasong-14 as poor at the mooted ranges which threaten US cities (which would require more testing to prove its accuracy). On 11 August 2017, The New York Times reviewed the anti-missile options that are available to counter a planned salvo of four Hwasong-12 missiles, were they to be launched in mid-August 2017 from the North, and aimed to land just outside the territorial waters of Guam, a distance of 2100 miles, flying at altitudes exceeding 62 miles, in a flight of 1065 seconds. These options for the missile defense of South Korea include "sea-based, Patriots and THAAD" according to General John E. Hyten, commander of U.S. Strategic Command. On 2 September 2017, the North Korean news agency KCNA released a photograph of an elongated payload, intended to fit in the warhead of one of its missiles. On 3 September 2017 both Japan's Foreign Ministry and the South Korean Joint Chiefs announced the detection of a magnitude 6.3 seismic event, centered near Punggye-ri, which is North Korea's underground nuclear test site. Japan's Foreign Ministry has concluded that the event was the North's sixth nuclear test. Choe Sang-hun of the New York Times reports that the test was a major embarrassment for China's Paramount leader Xi Jinping, who was hosting a BRICS summit (Brazil, Russia, India, China, and South Africa) in Xiamen, China. Cheng Xiaohe, an expert on North Korea at China's Renmin University, said the timing of the test appears to be deliberate. China's Foreign Ministry urged the North to "stop taking wrong actions", and agreed that further UN actions are needed to resolve the impending crisis. By