Overflight of USN vessels operating in international waters by Russian aircraft is nothing new. The proximity of this particular flyover is closer than typically seen but not unexpected IMHO. That said, we've had Russian Bears fly through the Case I pattern over the carrier at 500' AGL so nothing should really be surprising. At the end of the day what is going to be done about it...not much I'm guessing. Should there be something done...what are we going to do, shoot down a Russian SU-24?