The spy balloon’s flight over U.S. territory was the daring raid that exposed Beijing's campaign to steal American secrets.
In March 2017, an engineer at G.E. Aviation in Cincinnati whom I will refer to using part of his Chinese given name — received a request on LinkedIn. Hua is in his 40s, tall and athletic, with a boyish face that makes him look a decade younger. He moved to the United States from China in 2003 for graduate studies in structural engineering. After earning his Ph.D. in 200...