The U.S is thankfully a secular state, Pat, no need to worry or get your panties up in a bunch. I don't know about crosses in public buildings, especially as they are a symbol of Roman Catholicism & this country was founded upon 'Protestant' Christianity; this should answer your question on why a Bible or Christian material & not a Qur'an in court.

The 'Churches' here have no direct or indirect say in political matters (e.g: the Pope has little to no influence in this country's political affairs), or do you think otherwise? Why a Qur'an instead of a Bible in court?