Scary thought:
The backdoor was at the behest of our malev... er, benevolent overseers, who, after seeing the lack of interest in the Snowden revelations from the great unwashed masses, just don't give a piss about trying to hide the backdoors anymore.
"But, but, it's obvious, the techies'll spot that in an instant!"
TLA goon: "So? Nobody else cares, and won't listen to them anyway. So stick it in and put a goddam neon sign on it for all we care!"