I have no inside info, but presumably it's a call-out to potential journalistic sources. The call-out emphasizes secrecy to assuage fears of retaliation by thir

I have no inside info, but presumably it's a call-out to potential journalistic sources. The call-out emphasizes secrecy to assuage fears of retaliation by third parties not happy to see the news spread. The reporters Edward Snowden reached out to almost missed out on the story because it seemed too much work to install and learn to use the secure communication tools Snowden asked for before saying what it was all about.