All I can find from that Snowden tweet is https://www.youbetrayedus.org/facebook/ https://www.youbetrayedus.org/facebook/ . Are there any news articles explaini

All I can find from that Snowden tweet is https://www.youbetrayedus.org/facebook/ https://www.youbetrayedus.org/facebook/ . Are there any news articles explaining what the source of this claim is? That's a big deal if true.