I got involved in the BT movement in the mid 70s. Back then, only ultra orthodox groups were doing outreach and it was pretty strict. Even something like shaving your beard was a major problem. I remember an article in the Jewish Press many years ago that said that using an electric razor was not permitted by any major poskim (interperator of Jewish law, ie, Rabbi).
Let alone, not wearing a yalmulka as Joseph Lieberman, the Vice Presidential candidate doesn't do. It looks to me like the new "modern orthodox" is a lot like the old reform.
I have more about all of this in my thread on Yeshivat D'var Yerushalayim. Although I only spent about 3 months there, it influenced my feelings and thoughts about all of this quite a bit.