This is what the North Koreans or Iranians or any other belligerent can expect as the first indication that it's going to be a really bad day...Their most important communications centers, coordinating all radar, radio and satellite links are buried deep within reinforced concrete bunkers, but most likely not deep enough to prevent these MOP's from intruding on their coffee breaks...

They are especially effective when layered in one after another as shown in the video, and unseen until the first explosion because they were delivered by the B-2 stealth bomber...As Saddam Hussein found out the hard way a few years back, once your early warning radar systems close to your outlying borders have been neutralized, and air superiority has been established by your enemy in the first few minutes of a conflict, the next waves of B-52's, carrying even more bad news can strike with impunity on your other high value installations...
The MOP is precision guided primarily using GPS, similar to the Joint Direct Attack Munition (JDAM). Yet even the bunker buster variants in that series of weapons are incomparable to the mighty MOP. This precision guidance is thought to allow the MOP to not only hit deeply-buried installations at their weakest points, but it offers the potential to 'layer-in' multiple MOPs on a single pinpoint location—in effect 'digging' down to where the soil, rock, and concrete end and the vital infrastructure begins.
I would not want to be the one charged with thinking up a defense against a combination like this......Ben