The 1.5 billion dollars was given to Joe Bidens son with the express intent of buying an American defense electronic manufacturer that subcontracts on many of the US militarys most sensitive defense electronic warfare equipment . acquiring this company would have provided both very advanced radar technology a destructs, communications technology and secrets, stealth technology and secrets , ISR technology and secrets , countermeasures technology and secrets , missile and missile defense tech and secrets plus ton of other stuff , it would have given the Chinese enormous insight into the secret defense systems that the company worked on and supplied components for.
Joe Biden would have had to approve the sale deal which he was in the process of pushing through until a whistle blower leaked the nature of the deal and forced Biden to withdraw approval of the deal
Keep in mind the Slick Willie Clinton wrote the book on selling out to China and committing TREASON when he gave them rocketry and missile guidance technology in exchange for campaign "contributions" back in '96. Now they can accurately target EVERY city in America.