William Binney worked for the National Security Agency as a mathematician and code-breaker for more than 30 years.
But he resigned from the covert intelligence gathering agency in late 2001 because he said the NSA was purposefully violating the Constitution.
Binney said the NSA took one of the programs he built, known as ThinThread, and started using the program and members of his team to spy on virtually every U.S. citizen.
Speaking at a conference in London on July 5 this year, Binney said the ultimate goal of the NSA is total population control.
"At least 80 percent of fiber-optic cables globally go via the U.S. This is no accident and allows the U.S. to view all communication coming in. At least 80 percent of all audio calls, not just metadata, are recorded and stored in the U.S. The NSA lies about what it stores," Binney said.
Binney said the NSA is recording at least 80 percent of audio calls, and he told the Guardian he's had indirect contact with some NSA employees who are disgusted with what the agency is doing.