People have been warning about BSafe and Dual_EC_DRBG for years before Snowden came along. Privacy advocates and security professionals had been placing out a blanket warning of "government" snooping for decades before Snowden. Richard Stallman, the guy who wrote most of the Gnu utils back in the days, had been signing his emails with M-x spook, which had been in Emacs since 1988. The Internet started out anti-spook way back in the days.