United States of Secrets, Part Two (full documentary) | FRONTLINE

This episode of FRONTLINE's "United States of Secrets" investigates the extensive surveillance programs of the NSA and the cooperation of major internet companies. It details Edward Snowden's leak of classified documents, revealing the NSA's collection of phone records and internet data through programs like PRISM and Muscular. The episode explores the government's justifications for these programs, the reactions of Silicon Valley companies, and the legal challenges to national security letters. It also examines the tension between national security, privacy, and corporate interests in the digital age, highlighting the debates and concerns raised by these revelations.