With the final discharge of all cargo from the damaged tanker Castor, and its pending redelivery by the salvors to its owners for repair, a 39 day saga that has involved eight nations and raised serious concerns within the maritime industry has been successfully concluded, classification society American Bureau of Shipping (ABS) reported in a release. "It is unfortunate that political intervention into what should have been a purely technical challenge, put so many elements at risk," said Nicolas Hondos, chief executive of Athenian Sea Carriers, owners of the Castor. The unwillingness of Morocco, Spain, Algeria, Gibraltar, Greece, Tunisia and Malta to grant the vessel access to sheltered coastal waters turned the tanker into a pariah…