I thought it would be enroute to NK, but NK already has copied the SCUD, including the SCUD-D. Maybe NK actually built it, and the freighter was going to deliver it somewhere else.
It isn’t a SCUD. The images released show parts of the Fan Song radar system that guides SA-2 surface to air missiles. Remember the types that shot down U-2s over Cuba and Russia? Cuba has just announced that they were sending the systems to North Korea for repair.
http://theaviationist.com/2013/07/16/north-korea-ship-panama/#.UeZc8I3VCSo