That’s also very plausible and could well be right... my only doubt is the financial impact on such a move from inside.... but as you say there’s also the possibility of them being set up from the outside but within during development or construction ie design or materials but that would need to have been a much longer time table in respect of Vietnam.... Of course greed goes 2 ways in these places so it could well be their rushing to meet deadlines that compromised these planes though I’m inclined to think if it is that reason it would be greed on the back end so I’m back to that same doubt... Be interesting to know for certain whether what’s really happened to cause these defects and crashes has a common thread.... Timing wise, again might suggest that the Bad actors wouldn’t have had time to build in sabotage so there only short notice capability would come from software or hardware control or rather remote take over or physical sabotage whilst on the ground before the take off or during down time.... The key is if the guys investigating are straight and willing to share any real causes and that’s of course assuming they can find that out... But what you say is certainly a possibility I’m just more minded to think GodsAngel OP has slightly more weight for the reason I mentioned above.. Both are great posts guys, thanks 👍