Countries are always getting things from other countries. When I was in the serivce as a medic I learned the ins and outs of some of the different Russian aircraft. The reason is because we were testing them, so I needed to be able to rescue pilots in the event of a crash. Most of the stuff that is recovered is from defectors etc. At least the 2 hind helicopters we were using were from defectors. There were other helo's there as well we learned on but quite honestly it was about 13 years ago and I forget what they were
This doesn't surprise me at all that shit like this happens, and I would be it happens more than we think, and that goes for all countries.