There is a school of capitalist business-as-usualism, which holds that we should not be concerned about North Korean nuclear attacks on the West because the Americans have the technology to shoot down the missiles. Recently the US shot down a mock ICBM just to show that it means business.
    However, the only successful tests have been conducted in daylight, not night, let alone in ultra-bad weather. The US has had around a 50 percent success rate shooting down 10 missiles in 18 tests, with the missiles moving over a known path: The Australian, June 1, 2017, p. 9.
This is far from satisfactory because a mass launch of missiles means that almost 50 percent of targeted cities will be destroyed. Hopefully, not our city, but who knows what tomorrow will bring: http://www.bbc.com/news/world-asia-21710644.