Translation:
Mom, you cannot know whether I've saw my brother doing bad things while I hid in the closet and watched... Otherwise he will know someone was watching from the closet and never again will forget to check if someone is in there.
It will wreck the whole tattling mission so I cannot ever spy on him again. There's just no other way except the ONE way I chose and since I think I'm so clever it's just better to never tell anyone what my brother is doing since my ability to spy on him from the closet is actually more important than whatever wrong I'm catching him doing.
I'm totally against spying on our own populace, especially by the NSA which wasn't created with that intent at all. There is some reason they are doing it and we need to find out why and who is having them do it. Are they acting outside of government authority or is someone in government endorsing what they're doing? If the NSA is acting on it's own abolishing the NSA might be a solution. If what they're doing is being authorized behind closed doors getting rid of them won't change a thing, it'll just put a different label on it.
What I was getting at is we don't know the full extent of what they are doing. We know they are spying on us. We don't know what they are doing for us, if anything. They probably can't tell us exactly what they are doing to benefit us because it would wreck that part of their mission. We're in a Catch-22. We need to find out whether they work for the people or someone else, and go from there.