As of right now there is no way to drop into a friends interdiction when it concerns an NPC and be able to help him out, you show us and see him in space shooting at nothing...taking damage but there is nothing else there for you to see. Incredibly frustrating when i spot a high bounty anaconda/python or whatever and we cant both team up for the kill, this needs to be fixed so we can do more then watch our buddys blow up to invisible ships!