This page is designed to use web standards. You are using a browser that does not properly handle these standards. The website will work properly (it just won't look so hot) so you should consider upgrading. Any modern browser should work fine (Safari, Mozilla, IE, etc.)
Visit the Web Standards Project for more information.
This is a sad, disturbing, and in my opinion damning article. I am glad to see the press cover this issue more.
New Republic Article (or as PDF)