Freedom from Religion Foundation has actually won quite a few lawsuits for a supposed fringe group. I think they are actually mainstream leftists perfectly in line with the party that tried to take god and israeli's status out of the party platform.
That's pretty much it. Their approach is, "Don't worry, nothing to see here. We're harmless. (see klydon's post). Meanwhile, they slowly work at marginalizing religion in this country more and more.
