For nearly 30 years, through the five presidential years, the United States has not stopped the Korean weapons program.
There is no doubt that United states do not take North Korea seriously but It must does because North Korea has one of the most lunatic leader .For that reason, He can becomes an unknown quantity . Rest of the world especially USA must brace themselves.
It is true that the leader of North Korea is a lunatic. But recently, Donald Trump of the United States is also behaving in a similar manner. He is constantly provoking the North Koreans by conducting military exercises so close to their maritime border. He is no less war crazy than fat boy Kim.