Not sure why this is so important as I had problems in my early 20's and have changed a lot in the last 15 years and what someone does at 18 really is only an issue if somehow hasn't grown up since then. I am not crazy about Romney but of all things this isn't such a big deal.
However, of more recent issue is the fact Obama went to a church for 20 years with a preacher who promoted racism and also sided with the Palestianians and says we supported terrorism against them. He also made this speech right after 9/11 in which he believes America "deserved" 9/11. Why would Obama go to a church for 20 years and we shouldn't worry that he doesn't think well of America and his policies are to hurt this country. In addition that fact that has pastor hated Jews so much also should be of concern to those who are Jewish which I am. Anyway here is a video on you tube of his Pastor and this first speech when you click on it is right after 9/11.