john delaurie is an expert on north korean affairs. does the north participating in the olympics really matter? >> in and of itself the olympics is not going to solve anything. but if the olympics is a starting point, then it can really open up the channel between north and south. and that's the goal here is to make the olympics, the steppingstone to something else. >> reporter: the north koreans >>> there are more questions than answers about the failure of a top secret satellite ( launched over the weekend. david martin reports. >> ignition. liftoff. >> reporter: the launch was a success. >> the launch was a success. >> we have had successful liftoff of falcon nine carrying zuma. >> the top secret spy satellite it was carrying died. the u.s. official told cbs news the satellite code name zuma failed to achieve its intended orbit and crashed into the indian ocean. a total loss. it was launched sunday night atop a falcon nine rocket made by space x whose founder elon musk said he is out to revolutionize space technology. the rocket's