This all sounds very nihilistic and myopic. It's like saying I'm responsible for drones because I voted in an election for one of two candidates who were going to use them anyway. Credit where due, and I'm certainly not letting Congress off the hook, but your argument boils down to "well, Congress allowed them to exist," and I'm even less inclined to let the NSA off the hook. I have higher standards than, "well, that's just the way they are."
I didn't let the NSA off the hook, I was just commenting on the absurdity of congress acting like this wasn't the obvious outcome of decades of bad leadership and bad legislation.