The people who strongly oppose the security measures taken after 9/11 are in the minority. They were part of Obama's coalition, but were almost certainly outnumbered by teachers or blue collar factory workers. I bet if you polled the public, "NSA surveillance" wouldn't rank among the top 3 concerns of even a sizeable minority of the people.
So when the government engages in legal (at the edge of legality, to be sure, but at least colorably legal), and the people don't strongly oppose the measures, why do we treat it as some sort of failure of democracy?