Event Details

This document appears to be page 298 from the book 'How America Lost Its Secrets' (likely by Edward Jay Epstein, indicated by the filename 'Epst_...'). It details the operational fallout of the Edward Snowden leaks, specifically how terrorist targets using platforms like Xbox Live, Twitter, and Facebook ceased using these methods ('went dark') after the PRISM program was revealed in June 2013. The text cites NSA officials Richard Ledgett and Admiral Rogers confirming that the leaks resulted in a loss of surveillance capabilities against groups planning attacks in Europe and the US.