I for one think that a particular church, ie religion or belief, should be separated from state. I however think that someone within government having beliefs in a particular rligion & not being ashamed of it (ie, GW) should not be a bad thing SO LONG as said person does not try to slide tenets of said belief into government bills, etc (ie, GW again I think in some cases, personal opinion).
I think the In God We Trust type of things & the pledge of Allegiance should be allowed to stay, as they are glimpses into the past of those who made them. Many, such as the Pilgrims, who initially began populating what would become the USA were devout believers of particular religions, most believing in some form of Christian sect (I'm phrasing it this way considering natives were largely pushed aside as it was being formed). So for our particular nation as it was formed those words do reflect by & large the belief of the majority at the time it was initiated. It is now tradition of sorts & should be viewed as such moreso than some sortt of religious oppression of other beliefs in the here & now. But that's just my half cent.
As soon as any particular religion gets enough of a foothold in the workings of a government it begins to bias said government against those of other religions, be it it subtly or overtly.