The argument is that the Bible's impact as a book that shapes and impacts people's beliefs should be openly discussed... and if that discussion is done properly, there is no conflict between religion as a thing and public school education as a separate thing.
Very interesting idea and the article is a fascinating read.
Additionally (and related in that it's a non-religious look at something closely associated with religion), Time in 2006 ran a very interesting "10 Questions" interview with then President-elect of the U.S. Episcopal Church, Katharine Jefferts Schori. Many religious conservatives have taken umbrage with Schori's "liberal" views on gay clergy and in the interview she speaks to that criticism as well as her feelings on the relationship between religion and science.
Again, interesting ideas and regardless of someone's religious beliefs, there's a lot to be said for understanding where such an influential religious leader is coming from.
