I don't get it. If it he can do this, why can't someone else do the same thing? Why can't people register _that_ part of the story?

Anyone who has ever seen the show 24 can see that for every amazing tool we have to spy on Americans, there is some double-spy working within the agency using the very same tool against the government's own interest. This is exactly what is happening.

We built something we can't control. That's the story.