72% of all statistics found on the internet are entirely fictitious.
I don't think there's any way that 69% of the American public supports registration. Whether 69% of those Americans polled support it may be a different question, but then I have to question how people were chosen for polling. Was it because they logged into the Brady Campaign website, for example?
I'm a lawyer, but I'm not your lawyer. If you need some honest-to-goodness legal advice, go buy some.