What's wrong with the census?

A lady that I know sent me (and everyone that she knows on Facebook) a video about how the census and how it’s getting unconstitutional. I personally don’t see the problem with the government trying to figure out stuff by asking questions. What’s wrong with that?

I don’t get it… maybe because I’ve never taken one because I only just turned 18? What’s with the conspiracy? It’s only a few questions, can’t they just deal with it?

If you want to see the video, it’s here.