[sukhoi-30mki]

They didn’t steal the Nene engine-the British government sold it to them.

http://www.aviation-history.com/mikoyan/mig15.html

[jamaksin]

Exactly - the reasoning was kinda’ like “to improve trade relations between nations.”

[PeteePie]

OHH! That's true. I think I am thinking that the espionage had to do with the Russians stealing the technology it took to manufacture. I stand corrected.