I think he would have been very careful what he used
https://www.independent.co.uk/arts-entertainment/network-this-is-just-between-us-and-the-spies-1126316.html
Julian Assange, a cryptographer who moderates the online Australian discussion forum AUCRYPTO, found the new patent while investigating NSA capabilities.
"This patent should worry people. Everyone's overseas phone calls are or may soon be tapped, transcribed and archived in the bowels of an unaccountable foreign spy agency," he said.