To his American friends and contacts, Stephen Su was an affable businessman and gregarious guy. It took years to realize he was stealing high-level secrets left and right.

To his American friends and contacts, Stephen Su was an affable businessman and gregarious guy. It took years to realize he was stealing high-level secrets left and right. https://t.co/vCIDnNR9Kz

— The Daily Beast (@thedailybeast) May 20, 2019