North Korea could blow up a nuclear device or fire a ballistic missile during Donald Trump’s Asia visit, experts have warned. White House officials and Asian leaders are concerned that North Korea may attempt to disrupt President Donald Trump’s trip to Asia by conducting a missile test — or even a far more shocking atmospheric nuclear test. The feared nuclear explosion could be visible to the US

President as he tours Japan and South Kore in a defiant show of strength that could trigger World War 3. Previously North Korea conducted all testing underground, leading to a tunnel collapse that caused the death of roughly 200 nuclear workers. South Korean intelligence has detected activity at a North Korean missile facility that would be consistent with a coming test launch, South Korea’s Yonhap News agency reported earlier this week. READ MORE