Actually, the Ten Commandments apply to every religion.  They were "handed down" in the Old Testament, long before Jesus was born, so are not even, technically, "Christian."  In fact, they were given to the Abrahamics, i.e, the Jews and Arabs of the day.  But in general terms, the government should NEVER expend public funds on religious displays on public property.  This does not constitute "blocking a religion."  it is simply remaining religion-neutral, which is exactly as the Founders intended.