Why did my mom just do this?

[A. Sanders]

My mom recently told all of us kids that she installed a computer program that limits time on the computer and records everything you do into a compressed little video. This kind of disturbed me. Even though I don't do anything bad on the computer, she did this. Then, she told us that she blocked Facebook, Twitter, and YouTube, too--and that the Internet in our house would be completely blocked on our iPods.

The thing is, we have never had a problem with this before. I'm not excessive on the computer, and I don't look at anything bad. The fact that my mom did this tells me that she doesn't trust me and that I don't deserve privacy. Why would she do this?

PS: I'm typing this question at a friend's house.
I am fifteen, my sisters are ten and twelve.