“I think it's retarded. I probably shouldn't say that. I think it's stupid. If you want a Super Bowl, put a retractable dome on your stadium. Then you can get one. Other than that, I don't really like the idea. I don't think people would react very well to it, or be glad to play anybody in that kind of weather.”
Source : "Ravens’ QB Flacco: New Jersey Super Bowl is ‘retarded’" by Brian Costello, nypost.com. January 29, 2013.