The referenced Wired article describes Snowden talking about what US government had secretly done back in 2012 in Syria. Exactly what is so harmful about this t

The referenced Wired article describes Snowden talking about what US government had secretly done back in 2012 in Syria. Exactly what is so harmful about this that it makes you "question Snowden"? That he values people's awareness and informed society over "huge American interests"?