NSA spying- why is everyone so shocked?

So, I continue to be confused by how everyone is so shocked that the NSA has been spying on American citizens. I thought it was pretty clear back in 2001 when the Patriot Act was passed that this was exactly what they'd be doing.

So why is there a freak out now? My opinion: Back in 2001, when the Patriot Act was passed, there was so much fear because of 9/11. People were more than happy to have the government spy on them if it kept them safe (and didn't really question what that would really mean). I think most families would have loved to have an NSA agent living with them, paying their bills, raising their kids, etc. But when the culture of fear mellowed...still no anger. Out of sight, out of mind. Until the leaks, that is.