Blogger Tom McMahon thinks that the National Park Service is "hostile toward Christianity" because it recommends that its publications use BCE (before common era) instead of BC, and CE (common era) instead of AD.  From the editorial style guide of HFC:

Since when does adopting neutral non-religious writing style become "hostile toward Christianity"?

That's the problem with some of these people.  They think that if you don't bend toward Christianity, you're "hostile" to it.