If they're crazy enough to attempt this, it will either be a unmitigated disaster or a demonstration of our technological superiority over the world. I would bet on the former. According to reports, the United States has activated our missile defense system and may attempt to knock down a long range missile tested by the North Koreans...
The United States has activated its missile defense system to deal with a possible North Korean missile test, Kyodo News agency reported Tuesday, citing a report.
The U.S. is considering intercepting the missile if North Korea goes ahead with the test, Kyodo said, quoting The Washington Times.
The report came after Pyongyang declared Tuesday it is free to conduct missile tests despite a self-imposed moratorium, saying it is not bound by prior agreements and that outsiders have no right to criticize its actions.
Now that would be well & good if the system actually works. It's
failed 3 times out of 8 when we knew when, where, what trajectory, the radar profile, and even had tracking on the target missles. I doubt the North Koreans would oblige us with all of that info while trying to knock down their missile.
Also, if they actually tried this, I wonder about the implications of destroying North Korean property. I doubt we would like it, if the North Koreans fucked with our shit while we were testing it...