Originally Posted by BullMcGiveny
Problem is, at the time Zola was in SSR custody. It makes more sense if the Americans had him, especially since he was the only one who had worked with the Tesseract before.
Of course, it could be that the US swapped Zola for someone else.
Or here's a thought. The US swaps Zola for Bucky Barnes, only Bucky is already brainwashed and so he assassinates Chester Philips and runs away back to the USSR.
Like I said earlier: just have Zola defect from the US and join the Soviets.
Although I like your spy swap idea, too....except instead of Bucky, how 'bout they swap Zola for Natasha Romanoff?