I have the original set but I did not know it was reissued
Oh shit, that's awesome!
I thought ahead and got the originals 3 years ago before the conspiracy theory memorabilia craze.
I'm not sure on the differences but I got curious and found something related to it, might answer your question.
https://boardgamegeek.com/thread/2048651/second-edition
Apparently they also just released a 2020 expansion pack.
I see the difference now, it is the artwork.