"Second cousins can marry. I don't even know any that do except in West Virgina, Alabama, and Georgia. The rest of the states are safe."
A lot of states allow marriages between first cousins, too. I can't remember the number, but it's around 20 states, I believe.
There are far more cousin marriages than you know about. Stats show that their children are just as healthy as the rest of the population, for the most part.
The Bible says nothing about marrying cousins.
It is certainly something I don't stay awake nights about worrying about it. In fact the title of the story was Who's afraid of polygamy? I DEFINTELY am not. Why should I be? Knowing you as well as I do (as much as I can on internet), I doubt that you are afraid of polygamy either.