My mistake. They can discriminate in who they hire to teach religion to the kiddies, or who offers religious instruction. I suppose if the secretary offers religious advise, which I'm sure they could make the case, they can fire her. Upshot, their CEO's don't get protection from the US government. So, if a southern baptist church finds out their minister is half black, well, they can fire him for it.
http://www.outsidethebeltway.com/sup...mination-laws/