How Google earth owns north korea

**********READ INFO BEFORE YOU COMMENT************8 minute long video of targets being pointed out over north korea on google earth, and all military targets. highly advanced google satellites positioned over north korea took high definition pictures of military base's and area's. most of the vehicles you see are very old outdated soviet-cold war era mig's and planes that are no match to any countries air force today. most of these pictures are from 2010-2013 considering it takes google years to put all these images together to make one visible part of a country. but this video leads to one question. if it was this easy for google to gather these images on a very secretive and closed place like north korea, what other information have they not released to the general public that may give a edge to Nato if a war ever did break out?