Give North Korea a bloody nose?  Are you kidding!?  Nothing could be dumber!  Nothing could kill more people!

USA defense system cannot hit a bullet with a bullet consistently, and is an unreliable defense.  The North Korean ICBM target system will fail and will not hit its planned target, BUT it will kill millions. 

The United States missile defense is not consistently accurate enough to trust it to defend against ICBMs.  PERIOD!

Suggestion giving North Korea a "bloody nose" is the most insipid thought and will 100% lead to the death of millions of non-combatants.

Koche, the North Korean belief in self-reliance, means, in part, that every North Korean is a suicide soldier; they will fight to the death.

"U.S. Test of Missile Interceptor Fails Off Hawaiian Coast, Officials Say"
By HELENE COOPER and ERIC SCHMITTJAN. 31, 2018

https://www.nytimes.com/2018/01/31/us/politics/missile-launch-test-failed.html

Duh!  Tests are tests to learn what will fail.  It is not unusual for a missile test to show what fails, but there are elements of the test that did not fail.

"WASHINGTON — An American interceptor missile missed its target in a test off the Hawaiian coast on Wednesday, Defense Department officials said, renewing concerns of how the United States will defend itself in the event of a missile attack by North Korea or another adversary.

A Pentagon official said that the interceptor, an SM-3 Block IIA missile that is being developed by the Raytheon Company, was launched from a test site in Hawaii. Officials likened the test launch to an attempt to hit a bullet with another bullet.

It was the second failure over the past year of a test of the SM-3, known as the standard missile; the last one was in June.

Mark Wright, a spokesman for the Missile Defense Agency, confirmed “a live-fire missile flight test” from Kauai. He did not confirm that the test had failed."

. . . because just missing the target is NOT necessarily a failure!