In a place unknown to Ren He, a document was secretly delivered to the Federal Bureau of Investigation, which people commonly refer to as the FBI.
The person responsible for receiving the document was Simon, the white man who had reconstructed Ren He's sniping operation at the crime scene.
In fact, the National Security Agency and the Federal Bureau of Investigation are quite different, with the National Security Agency being responsible for more electronic intelligence systems, such as the electronic information surveillance and monitoring that people like Snowden were in charge of during their time working for contractors of the NSA.
Before Snowden exposed his identity, the outside world didn't even know what kind of job he had; everyone who entered was engaged in confidentiality work.
